11557742357 has 24 divisors (see below), whose sum is σ = 13527210816. Its totient is φ = 9846059328.

The previous prime is 11557742327. The next prime is 11557742363. The reversal of 11557742357 is 75324775511.

It is not a de Polignac number, because 11557742357 - 2⁸ = 11557742101 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (1029000) is a multiple of the sum of its prime divisors (2450).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11557742327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6974273 + ... + 6975929.

It is an arithmetic number, because the mean of its divisors is an integer number (563633784).

Almost surely, 2^11557742357 is an apocalyptic number.

It is an amenable number.

11557742357 is a deficient number, since it is larger than the sum of its proper divisors (1969468459).

11557742357 is a wasteful number, since it uses less digits than its factorization.

11557742357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457 (or 2450 counting only the distinct ones).

The product of its digits is 1029000, while the sum is 47.

The spelling of 11557742357 in words is "eleven billion, five hundred fifty-seven million, seven hundred forty-two thousand, three hundred fifty-seven".