11957251933 has 16 divisors (see below), whose sum is σ = 13396777920. Its totient is φ = 10580128000.

The previous prime is 11957251919. The next prime is 11957251939. The reversal of 11957251933 is 33915275911.

It is a cyclic number.

It is not a de Polignac number, because 11957251933 - 2¹³ = 11957243741 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 (11957251939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25660 + ... + 156757.

It is an arithmetic number, because the mean of its divisors is an integer number (837298620).

Almost surely, 2^11957251933 is an apocalyptic number.

It is an amenable number.

11957251933 is a deficient number, since it is larger than the sum of its proper divisors (1439525987).

11957251933 is a wasteful number, since it uses less digits than its factorization.

11957251933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182588.

The product of its digits is 255150, while the sum is 46.

The spelling of 11957251933 in words is "eleven billion, nine hundred fifty-seven million, two hundred fifty-one thousand, nine hundred thirty-three".