11857645374 has 32 divisors (see below), whose sum is σ = 24815820960. Its totient is φ = 3773158272.

The previous prime is 11857645357. The next prime is 11857645447. The reversal of 11857645374 is 47354675811.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492129 + ... + 515660.

It is an arithmetic number, because the mean of its divisors is an integer number (775494405).

Almost surely, 2^11857645374 is an apocalyptic number.

11857645374 is an abundant number, since it is smaller than the sum of its proper divisors (12958175586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11857645374 is a wasteful number, since it uses less digits than its factorization.

11857645374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007884.

The product of its digits is 2822400, while the sum is 51.

It can be divided in two parts, 11857 and 645374, that added together give a triangular number (657231 = T₁₁₄₆).

The spelling of 11857645374 in words is "eleven billion, eight hundred fifty-seven million, six hundred forty-five thousand, three hundred seventy-four".