79196321490 has 128 divisors (see below), whose sum is σ = 224639557632. Its totient is φ = 17615973120.

The previous prime is 79196321471. The next prime is 79196321537. The reversal of 79196321490 is 9412369197.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 661159 + ... + 771701.

It is an arithmetic number, because the mean of its divisors is an integer number (1754996544).

Almost surely, 2^79196321490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79196321490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112319778816).

79196321490 is an abundant number, since it is smaller than the sum of its proper divisors (145443236142).

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

79196321490 is a wasteful number, since it uses less digits than its factorization.

79196321490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110744.

The product of its (nonzero) digits is 734832, while the sum is 51.

The spelling of 79196321490 in words is "seventy-nine billion, one hundred ninety-six million, three hundred twenty-one thousand, four hundred ninety".