11931051998936 has 64 divisors (see below), whose sum is σ = 25987765248000. Its totient is φ = 5029076511360.

The previous prime is 11931051998903. The next prime is 11931051999073. The reversal of 11931051998936 is 63989915013911.

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, 44133185 + ... + 44402703.

It is an arithmetic number, because the mean of its divisors is an integer number (406058832000).

Almost surely, 2^{11931051998936} is an apocalyptic number.

It is an amenable number.

11931051998936 is an abundant number, since it is smaller than the sum of its proper divisors (14056713249064).

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

11931051998936 is a wasteful number, since it uses less digits than its factorization.

11931051998936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282552 (or 282548 counting only the distinct ones).

The product of its (nonzero) digits is 14171760, while the sum is 65.

The spelling of 11931051998936 in words is "eleven trillion, nine hundred thirty-one billion, fifty-one million, nine hundred ninety-eight thousand, nine hundred thirty-six".