72970881645125 has 16 divisors (see below), whose sum is σ = 91161835894272. Its totient is φ = 58316336341200.

The previous prime is 72970881645107. The next prime is 72970881645163. The reversal of 72970881645125 is 52154618807927.

It is not a de Polignac number, because 72970881645125 - 2³⁶ = 72902162168389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301723517 + ... + 301965266.

It is an arithmetic number, because the mean of its divisors is an integer number (5697614743392).

Almost surely, 2^{72970881645125} is an apocalyptic number.

It is an amenable number.

72970881645125 is a deficient number, since it is larger than the sum of its proper divisors (18190954249147).

72970881645125 is an equidigital number, since it uses as much as digits as its factorization.

72970881645125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603689765 (or 603689755 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 65.

The spelling of 72970881645125 in words is "seventy-two trillion, nine hundred seventy billion, eight hundred eighty-one million, six hundred forty-five thousand, one hundred twenty-five".