72571777440140 has 48 divisors (see below), whose sum is σ = 166255924101120. Its totient is φ = 26389645279680.

The previous prime is 72571777440073. The next prime is 72571777440157. The reversal of 72571777440140 is 4104477717527.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 121013951 + ... + 121612169.

It is an arithmetic number, because the mean of its divisors is an integer number (3463665085440).

Almost surely, 2^{72571777440140} is an apocalyptic number.

It is an amenable number.

72571777440140 is an abundant number, since it is smaller than the sum of its proper divisors (93684146660980).

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

72571777440140 is a wasteful number, since it uses less digits than its factorization.

72571777440140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149662 (or 1149660 counting only the distinct ones).

The product of its (nonzero) digits is 10756480, while the sum is 56.

The spelling of 72571777440140 in words is "seventy-two trillion, five hundred seventy-one billion, seven hundred seventy-seven million, four hundred forty thousand, one hundred forty".