72737345790 has 64 divisors (see below), whose sum is σ = 194682193920. Its totient is φ = 19325031840.

The previous prime is 72737345767. The next prime is 72737345839. The reversal of 72737345790 is 9754373727.

72737345790 is a `hidden beast` number, since 7 + 2 + 7 + 37 + 34 + 579 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 423874 + ... + 570213.

It is an arithmetic number, because the mean of its divisors is an integer number (3041909280).

Almost surely, 2^72737345790 is an apocalyptic number.

72737345790 is an abundant number, since it is smaller than the sum of its proper divisors (121944848130).

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

72737345790 is a wasteful number, since it uses less digits than its factorization.

72737345790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994374 (or 994368 counting only the distinct ones).

The product of its (nonzero) digits is 7779240, while the sum is 54.

The spelling of 72737345790 in words is "seventy-two billion, seven hundred thirty-seven million, three hundred forty-five thousand, seven hundred ninety".