11920501974 has 16 divisors (see below), whose sum is σ = 24176793600. Its totient is φ = 3917535720.

The previous prime is 11920501969. The next prime is 11920501993. The reversal of 11920501974 is 47910502911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13990774 + ... + 13991625.

It is an arithmetic number, because the mean of its divisors is an integer number (1511049600).

Almost surely, 2^11920501974 is an apocalyptic number.

11920501974 is an abundant number, since it is smaller than the sum of its proper divisors (12256291626).

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

11920501974 is a wasteful number, since it uses less digits than its factorization.

11920501974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27982475.

The product of its (nonzero) digits is 22680, while the sum is 39.

The spelling of 11920501974 in words is "eleven billion, nine hundred twenty million, five hundred one thousand, nine hundred seventy-four".