72036454437 has 16 divisors (see below), whose sum is σ = 109605017280. Its totient is φ = 46726348176.

The previous prime is 72036454433. The next prime is 72036454489. The reversal of 72036454437 is 73445463027.

72036454437 is a `hidden beast` number, since 7 + 203 + 6 + 4 + 5 + 4 + 437 = 666.

It is not a de Polignac number, because 72036454437 - 2² = 72036454433 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 72036454392 and 72036454401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72036454433) 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, 36053283 + ... + 36055280.

It is an arithmetic number, because the mean of its divisors is an integer number (6850313580).

Almost surely, 2^72036454437 is an apocalyptic number.

It is an amenable number.

72036454437 is a deficient number, since it is larger than the sum of its proper divisors (37568562843).

72036454437 is a wasteful number, since it uses less digits than its factorization.

72036454437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72108609 (or 72108603 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 45.

The spelling of 72036454437 in words is "seventy-two billion, thirty-six million, four hundred fifty-four thousand, four hundred thirty-seven".