27245579157 has 12 divisors (see below), whose sum is σ = 39359486764. Its totient is φ = 18161521920.

The previous prime is 27245579107. The next prime is 27245579173. The reversal of 27245579157 is 75197554272.

27245579157 is a `hidden beast` number, since 2 + 72 + 4 + 557 + 9 + 15 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18581506596 + 8664072561 = 136314^2 + 93081^2 .

It is not a de Polignac number, because 27245579157 - 2¹⁰ = 27245578133 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 (27245579107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102748 + ... + 255045.

Almost surely, 2^27245579157 is an apocalyptic number.

It is an amenable number.

27245579157 is a deficient number, since it is larger than the sum of its proper divisors (12113907607).

27245579157 is a wasteful number, since it uses less digits than its factorization.

27245579157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366260 (or 366257 counting only the distinct ones).

The product of its digits is 6174000, while the sum is 54.

The spelling of 27245579157 in words is "twenty-seven billion, two hundred forty-five million, five hundred seventy-nine thousand, one hundred fifty-seven".