79890558038 has 8 divisors (see below), whose sum is σ = 121477424088. Its totient is φ = 39398083344.

The previous prime is 79890557977. The next prime is 79890558053. The reversal of 79890558038 is 83085509897.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273597656 + ... + 273597947.

It is an arithmetic number, because the mean of its divisors is an integer number (15184678011).

Almost surely, 2^79890558038 is an apocalyptic number.

79890558038 is a deficient number, since it is larger than the sum of its proper divisors (41586866050).

79890558038 is a wasteful number, since it uses less digits than its factorization.

79890558038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547195678.

The product of its (nonzero) digits is 21772800, while the sum is 62.

The spelling of 79890558038 in words is "seventy-nine billion, eight hundred ninety million, five hundred fifty-eight thousand, thirty-eight".