72645074307500 has 120 divisors (see below), whose sum is σ = 162455150298672. Its totient is φ = 28406311200000.

The previous prime is 72645074307437. The next prime is 72645074307527. The reversal of 72645074307500 is 570347054627.

It is a super-2 number, since 2×72645074307500² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23396270 + ... + 26318730.

Almost surely, 2^{72645074307500} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72645074307500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81227575149336).

72645074307500 is an abundant number, since it is smaller than the sum of its proper divisors (89810075991172).

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

72645074307500 is a wasteful number, since it uses less digits than its factorization.

72645074307500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922709 (or 2922692 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 50.

The spelling of 72645074307500 in words is "seventy-two trillion, six hundred forty-five billion, seventy-four million, three hundred seven thousand, five hundred".