72137759120 has 40 divisors (see below), whose sum is σ = 191680332864. Its totient is φ = 24732945792.

The previous prime is 72137759093. The next prime is 72137759129. The reversal of 72137759120 is 2195773127.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (72137759129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64408154 + ... + 64409273.

Almost surely, 2^72137759120 is an apocalyptic number.

72137759120 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72137759120 is an abundant number, since it is smaller than the sum of its proper divisors (119542573744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72137759120 is a wasteful number, since it uses less digits than its factorization.

72137759120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128817447 (or 128817441 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 44.

The spelling of 72137759120 in words is "seventy-two billion, one hundred thirty-seven million, seven hundred fifty-nine thousand, one hundred twenty".