72541392075 has 24 divisors (see below), whose sum is σ = 133261225200. Its totient is φ = 38688742080.

The previous prime is 72541392071. The next prime is 72541392103. The reversal of 72541392075 is 57029314527.

It is a happy number.

72541392075 is a `hidden beast` number, since 7 + 2 + 541 + 39 + 2 + 0 + 75 = 666.

It is not a de Polignac number, because 72541392075 - 2² = 72541392071 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 72541392075.

It is not an unprimeable number, because it can be changed into a prime (72541392071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53733690 + ... + 53735039.

It is an arithmetic number, because the mean of its divisors is an integer number (5552551050).

Almost surely, 2^72541392075 is an apocalyptic number.

72541392075 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72541392075 is a deficient number, since it is larger than the sum of its proper divisors (60719833125).

72541392075 is a wasteful number, since it uses less digits than its factorization.

72541392075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107468748 (or 107468737 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 72541392075 in words is "seventy-two billion, five hundred forty-one million, three hundred ninety-two thousand, seventy-five".