79577341446490 has 16 divisors (see below), whose sum is σ = 145587398450760. Its totient is φ = 31309117945920.

The previous prime is 79577341446469. The next prime is 79577341446517. The reversal of 79577341446490 is 9464414377597.

It can be written as a sum of positive squares in 4 ways, for example, as 23911014432321 + 55666327014169 = 4889889^2 + 7460987^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65227328445 + ... + 65227329664.

Almost surely, 2^{79577341446490} is an apocalyptic number.

79577341446490 is a deficient number, since it is larger than the sum of its proper divisors (66010057004270).

79577341446490 is a wasteful number, since it uses less digits than its factorization.

79577341446490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130454658177.

The product of its (nonzero) digits is 640120320, while the sum is 70.

The spelling of 79577341446490 in words is "seventy-nine trillion, five hundred seventy-seven billion, three hundred forty-one million, four hundred forty-six thousand, four hundred ninety".