11857659434 has 16 divisors (see below), whose sum is σ = 18270096000. Its totient is φ = 5767678224.

The previous prime is 11857659431. The next prime is 11857659449. The reversal of 11857659434 is 43495675811.

It is not an unprimeable number, because it can be changed into a prime (11857659431) 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, 878267 + ... + 891665.

It is an arithmetic number, because the mean of its divisors is an integer number (1141881000).

Almost surely, 2^11857659434 is an apocalyptic number.

11857659434 is a deficient number, since it is larger than the sum of its proper divisors (6412436566).

11857659434 is a wasteful number, since it uses less digits than its factorization.

11857659434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25397.

The product of its digits is 3628800, while the sum is 53.

The spelling of 11857659434 in words is "eleven billion, eight hundred fifty-seven million, six hundred fifty-nine thousand, four hundred thirty-four".