36072533981 has 16 divisors (see below), whose sum is σ = 40217886720. Its totient is φ = 32072519280.

The previous prime is 36072533951. The next prime is 36072534041. The reversal of 36072533981 is 18933527063.

It is a cyclic number.

It is not a de Polignac number, because 36072533981 - 2²⁶ = 36005425117 is a prime.

It is a super-2 number, since 2×36072533981² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36072533911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719720 + ... + 768206.

It is an arithmetic number, because the mean of its divisors is an integer number (2513617920).

Almost surely, 2^36072533981 is an apocalyptic number.

It is an amenable number.

36072533981 is a deficient number, since it is larger than the sum of its proper divisors (4145352739).

36072533981 is a wasteful number, since it uses less digits than its factorization.

36072533981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49984.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 36072533981 in words is "thirty-six billion, seventy-two million, five hundred thirty-three thousand, nine hundred eighty-one".