28545414451 has 8 divisors (see below), whose sum is σ = 29468822400. Its totient is φ = 27622168320.

The previous prime is 28545414449. The next prime is 28545414551. The reversal of 28545414451 is 15441454582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28545414451 - 2¹ = 28545414449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28545414398 and 28545414407.

It is not an unprimeable number, because it can be changed into a prime (28545414151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391395 + ... + 458563.

It is an arithmetic number, because the mean of its divisors is an integer number (3683602800).

Almost surely, 2^28545414451 is an apocalyptic number.

28545414451 is a deficient number, since it is larger than the sum of its proper divisors (923407949).

28545414451 is a wasteful number, since it uses less digits than its factorization.

28545414451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80909.

The product of its digits is 512000, while the sum is 43.

The spelling of 28545414451 in words is "twenty-eight billion, five hundred forty-five million, four hundred fourteen thousand, four hundred fifty-one".