79619321340 has 72 divisors (see below), whose sum is σ = 260089790688. Its totient is φ = 19598601600.

The previous prime is 79619321333. The next prime is 79619321363. The reversal of 79619321340 is 4312391697.

79619321340 is a `hidden beast` number, since 7 + 9 + 619 + 3 + 21 + 3 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17010336 + ... + 17015015.

It is an arithmetic number, because the mean of its divisors is an integer number (3612358204).

Almost surely, 2^79619321340 is an apocalyptic number.

It is an amenable number.

79619321340 is an abundant number, since it is smaller than the sum of its proper divisors (180470469348).

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

79619321340 is a wasteful number, since it uses less digits than its factorization.

79619321340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34025379 (or 34025374 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 79619321340 in words is "seventy-nine billion, six hundred nineteen million, three hundred twenty-one thousand, three hundred forty".