72420371530526 has 8 divisors (see below), whose sum is σ = 108631312740720. Its totient is φ = 36209933950288.

The previous prime is 72420371530477. The next prime is 72420371530537. The reversal of 72420371530526 is 62503517302427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125547791 + ... + 126123306.

It is an arithmetic number, because the mean of its divisors is an integer number (13578914092590).

Almost surely, 2^{72420371530526} is an apocalyptic number.

72420371530526 is a deficient number, since it is larger than the sum of its proper divisors (36210941210194).

72420371530526 is a wasteful number, since it uses less digits than its factorization.

72420371530526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251814978.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The spelling of 72420371530526 in words is "seventy-two trillion, four hundred twenty billion, three hundred seventy-one million, five hundred thirty thousand, five hundred twenty-six".