15457828525207 has 4 divisors (see below), whose sum is σ = 15458129622936. Its totient is φ = 15457527427480.

The previous prime is 15457828525199. The next prime is 15457828525219. The reversal of 15457828525207 is 70252582875451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15457828525207 - 2³ = 15457828525199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15457828525267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150471844 + ... + 150574537.

It is an arithmetic number, because the mean of its divisors is an integer number (3864532405734).

Almost surely, 2^{15457828525207} is an apocalyptic number.

15457828525207 is a deficient number, since it is larger than the sum of its proper divisors (301097729).

15457828525207 is an equidigital number, since it uses as much as digits as its factorization.

15457828525207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301097728.

The product of its (nonzero) digits is 62720000, while the sum is 61.

The spelling of 15457828525207 in words is "fifteen trillion, four hundred fifty-seven billion, eight hundred twenty-eight million, five hundred twenty-five thousand, two hundred seven".