11962975500 has 144 divisors (see below), whose sum is σ = 43130627904. Its totient is φ = 2734387200.

The previous prime is 11962975499. The next prime is 11962975501. The reversal of 11962975500 is 557926911.

11962975500 is a `hidden beast` number, since 1 + 1 + 9 + 6 + 2 + 97 + 550 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (11962975499) and next prime (11962975501).

It is a super-2 number, since 2×11962975500² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (11962975501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 158389 + ... + 221388.

Almost surely, 2^11962975500 is an apocalyptic number.

11962975500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11962975500 is an abundant number, since it is smaller than the sum of its proper divisors (31167652404).

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

11962975500 is a wasteful number, since it uses less digits than its factorization.

11962975500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379809 (or 379794 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 45.

The spelling of 11962975500 in words is "eleven billion, nine hundred sixty-two million, nine hundred seventy-five thousand, five hundred".