72490123601 has 16 divisors (see below), whose sum is σ = 83298428928. Its totient is φ = 61795774800.

The previous prime is 72490123591. The next prime is 72490123609. The reversal of 72490123601 is 10632109427.

It is a cyclic number.

It is not a de Polignac number, because 72490123601 - 2¹⁰ = 72490122577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72490123609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049726 + ... + 1116648.

It is an arithmetic number, because the mean of its divisors is an integer number (5206151808).

Almost surely, 2^72490123601 is an apocalyptic number.

It is an amenable number.

72490123601 is a deficient number, since it is larger than the sum of its proper divisors (10808305327).

72490123601 is a wasteful number, since it uses less digits than its factorization.

72490123601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67772.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 72490123601 in words is "seventy-two billion, four hundred ninety million, one hundred twenty-three thousand, six hundred one".