79222049040 has 160 divisors (see below), whose sum is σ = 248147867520. Its totient is φ = 20906303488.

The previous prime is 79222049033. The next prime is 79222049119. The reversal of 79222049040 is 4094022297.

It is a super-2 number, since 2×79222049040² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79222049040.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20961871 + ... + 20965649.

It is an arithmetic number, because the mean of its divisors is an integer number (1550924172).

Almost surely, 2^79222049040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79222049040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124073933760).

79222049040 is an abundant number, since it is smaller than the sum of its proper divisors (168925818480).

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

79222049040 is a wasteful number, since it uses less digits than its factorization.

79222049040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681 (or 4675 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 79222049040 in words is "seventy-nine billion, two hundred twenty-two million, forty-nine thousand, forty".