73980617790 has 16 divisors (see below), whose sum is σ = 177553482768. Its totient is φ = 19728164736.

The previous prime is 73980617779. The next prime is 73980617791. The reversal of 73980617790 is 9771608937.

It is a self number, because there is not a number n which added to its sum of digits gives 73980617790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73980617791) 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, 1233010267 + ... + 1233010326.

It is an arithmetic number, because the mean of its divisors is an integer number (11097092673).

Almost surely, 2^73980617790 is an apocalyptic number.

73980617790 is an abundant number, since it is smaller than the sum of its proper divisors (103572864978).

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

73980617790 is a wasteful number, since it uses less digits than its factorization.

73980617790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466020603.

The product of its (nonzero) digits is 4000752, while the sum is 57.

The spelling of 73980617790 in words is "seventy-three billion, nine hundred eighty million, six hundred seventeen thousand, seven hundred ninety".