11851804974 has 32 divisors (see below), whose sum is σ = 24382622880. Its totient is φ = 3838233600.

The previous prime is 11851804969. The next prime is 11851804981. The reversal of 11851804974 is 47940815811.

It is a super-2 number, since 2×11851804974² (a number of 21 digits) contains 22 as substring.

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, 40669 + ... + 159240.

It is an arithmetic number, because the mean of its divisors is an integer number (761956965).

Almost surely, 2^11851804974 is an apocalyptic number.

11851804974 is an abundant number, since it is smaller than the sum of its proper divisors (12530817906).

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

11851804974 is a wasteful number, since it uses less digits than its factorization.

11851804974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200196.

The product of its (nonzero) digits is 322560, while the sum is 48.

The spelling of 11851804974 in words is "eleven billion, eight hundred fifty-one million, eight hundred four thousand, nine hundred seventy-four".