72531033534750 has 64 divisors (see below), whose sum is σ = 206899953960960. Its totient is φ = 16578521949600.

The previous prime is 72531033534737. The next prime is 72531033534829. The reversal of 72531033534750 is 5743533013527.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 72531033534750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6907712230 + ... + 6907722729.

It is an arithmetic number, because the mean of its divisors is an integer number (3232811780640).

Almost surely, 2^{72531033534750} is an apocalyptic number.

72531033534750 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72531033534750 is an abundant number, since it is smaller than the sum of its proper divisors (134368920426210).

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

72531033534750 is a wasteful number, since it uses less digits than its factorization.

72531033534750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13815434986 (or 13815434976 counting only the distinct ones).

The product of its (nonzero) digits is 3969000, while the sum is 48.

The spelling of 72531033534750 in words is "seventy-two trillion, five hundred thirty-one billion, thirty-three million, five hundred thirty-four thousand, seven hundred fifty".