72653898064 has 40 divisors (see below), whose sum is σ = 153608605920. Its totient is φ = 33014889600.

The previous prime is 72653898043. The next prime is 72653898067. The reversal of 72653898064 is 46089835627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72653898067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564927 + ... + 681505.

It is an arithmetic number, because the mean of its divisors is an integer number (3840215148).

Almost surely, 2^72653898064 is an apocalyptic number.

It is an amenable number.

72653898064 is an abundant number, since it is smaller than the sum of its proper divisors (80954707856).

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

72653898064 is a wasteful number, since it uses less digits than its factorization.

72653898064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120139 (or 120133 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 72653898064 in words is "seventy-two billion, six hundred fifty-three million, eight hundred ninety-eight thousand, sixty-four".