36401183172 has 36 divisors (see below), whose sum is σ = 92203086976. Its totient is φ = 12108806640.

The previous prime is 36401183171. The next prime is 36401183233. The reversal of 36401183172 is 27138110463.

It is a happy number.

36401183172 is a `hidden beast` number, since 3 + 6 + 401 + 1 + 83 + 172 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×36401183172² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (36401183171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1020604 + ... + 1055667.

Almost surely, 2^36401183172 is an apocalyptic number.

It is an amenable number.

36401183172 is an abundant number, since it is smaller than the sum of its proper divisors (55801903804).

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

36401183172 is a wasteful number, since it uses less digits than its factorization.

36401183172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076768 (or 2076763 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 36401183172 in words is "thirty-six billion, four hundred one million, one hundred eighty-three thousand, one hundred seventy-two".