122639671296 has 140 divisors (see below), whose sum is σ = 366384562632. Its totient is φ = 40879669248.

The previous prime is 122639671289. The next prime is 122639671367. The reversal of 122639671296 is 692176936221.

122639671296 is a `hidden beast` number, since 1 + 2 + 263 + 96 + 7 + 1 + 296 = 666.

122639671296 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 571141 + ... + 755963.

Almost surely, 2^122639671296 is an apocalyptic number.

122639671296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122639671296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183192281316).

122639671296 is an abundant number, since it is smaller than the sum of its proper divisors (243744891336).

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

122639671296 is an frugal number, since it uses more digits than its factorization.

122639671296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184861 (or 184828 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 122639671296 in words is "one hundred twenty-two billion, six hundred thirty-nine million, six hundred seventy-one thousand, two hundred ninety-six".