11899086372 has 18 divisors (see below), whose sum is σ = 30078246198. Its totient is φ = 3966362112.

The previous prime is 11899086371. The next prime is 11899086383. The reversal of 11899086372 is 27368099811.

11899086372 is a `hidden beast` number, since 1 + 189 + 90 + 8 + 6 + 372 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8316345636 + 3582740736 = 91194^2 + 59856^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×11899086372² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11899086371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 165265053 + ... + 165265124.

Almost surely, 2^11899086372 is an apocalyptic number.

11899086372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11899086372 is an abundant number, since it is smaller than the sum of its proper divisors (18179159826).

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

11899086372 is a wasteful number, since it uses less digits than its factorization.

11899086372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330530187 (or 330530182 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 11899086372 in words is "eleven billion, eight hundred ninety-nine million, eighty-six thousand, three hundred seventy-two".