72530757303075 has 144 divisors (see below), whose sum is σ = 140164405127136. Its totient is φ = 35716422144000.

The previous prime is 72530757303019. The next prime is 72530757303113. The reversal of 72530757303075 is 57030375703527.

It is a happy number.

72530757303075 is a `hidden beast` number, since 7 + 2 + 5 + 30 + 7 + 573 + 0 + 30 + 7 + 5 = 666.

It is not a de Polignac number, because 72530757303075 - 2¹¹ = 72530757301027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2350986400 + ... + 2351017250.

It is an arithmetic number, because the mean of its divisors is an integer number (973363924494).

Almost surely, 2^{72530757303075} is an apocalyptic number.

72530757303075 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

72530757303075 is a deficient number, since it is larger than the sum of its proper divisors (67633647824061).

72530757303075 is a wasteful number, since it uses less digits than its factorization.

72530757303075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42534 (or 42526 counting only the distinct ones).

The product of its (nonzero) digits is 16206750, while the sum is 54.

The spelling of 72530757303075 in words is "seventy-two trillion, five hundred thirty billion, seven hundred fifty-seven million, three hundred three thousand, seventy-five".