79885440000 has 1100 divisors, whose sum is σ = 315699868704. Its totient is φ = 20072448000.

The previous prime is 79885439951. The next prime is 79885440073. The reversal of 79885440000 is 4458897.

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 99 ways as a sum of consecutive naturals, for example, 1192319967 + ... + 1192320033.

Almost surely, 2^79885440000 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 79885440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157849934352).

79885440000 is an abundant number, since it is smaller than the sum of its proper divisors (235814428704).

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

79885440000 is an equidigital number, since it uses as much as digits as its factorization.

79885440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

Adding to 79885440000 its reverse (4458897), we get a palindrome (79889898897).

The spelling of 79885440000 in words is "seventy-nine billion, eight hundred eighty-five million, four hundred forty thousand".