15428364457 has 4 divisors (see below), whose sum is σ = 16830943056. Its totient is φ = 14025785860.

The previous prime is 15428364437. The next prime is 15428364473. The reversal of 15428364457 is 75446382451.

15428364457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75446382451 = 11 ⋅6858762041.

It is a cyclic number.

It is not a de Polignac number, because 15428364457 - 2²³ = 15419975849 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15428364457.

It is not an unprimeable number, because it can be changed into a prime (15428364437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701289283 + ... + 701289304.

It is an arithmetic number, because the mean of its divisors is an integer number (4207735764).

Almost surely, 2^15428364457 is an apocalyptic number.

It is an amenable number.

15428364457 is a deficient number, since it is larger than the sum of its proper divisors (1402578599).

15428364457 is a wasteful number, since it uses less digits than its factorization.

15428364457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402578598.

The product of its digits is 3225600, while the sum is 49.

The spelling of 15428364457 in words is "fifteen billion, four hundred twenty-eight million, three hundred sixty-four thousand, four hundred fifty-seven".