79208706490 has 32 divisors (see below), whose sum is σ = 143251552080. Its totient is φ = 31533410304.

The previous prime is 79208706461. The next prime is 79208706497. The reversal of 79208706490 is 9460780297.

It can be written as a sum of positive squares in 8 ways, for example, as 58096907089 + 21111799401 = 241033^2 + 145299^2 .

It is not an unprimeable number, because it can be changed into a prime (79208706497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6352342 + ... + 6364798.

Almost surely, 2^79208706490 is an apocalyptic number.

79208706490 is a deficient number, since it is larger than the sum of its proper divisors (64042845590).

79208706490 is a wasteful number, since it uses less digits than its factorization.

79208706490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15426.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 79208706490 in words is "seventy-nine billion, two hundred eight million, seven hundred six thousand, four hundred ninety".