72960879121 has 16 divisors (see below), whose sum is σ = 78712429824. Its totient is φ = 67229345664.

The previous prime is 72960879091. The next prime is 72960879139. The reversal of 72960879121 is 12197806927.

It is not a de Polignac number, because 72960879121 - 2¹⁹ = 72960354833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72960871121) 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, 26271885 + ... + 26274661.

It is an arithmetic number, because the mean of its divisors is an integer number (4919526864).

Almost surely, 2^72960879121 is an apocalyptic number.

It is an amenable number.

72960879121 is a deficient number, since it is larger than the sum of its proper divisors (5751550703).

72960879121 is a wasteful number, since it uses less digits than its factorization.

72960879121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640.

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 72960879121 in words is "seventy-two billion, nine hundred sixty million, eight hundred seventy-nine thousand, one hundred twenty-one".