122490720968 has 108 divisors (see below), whose sum is σ = 293846041755. Its totient is φ = 47693960160.

The previous prime is 122490720943. The next prime is 122490720997. The reversal of 122490720968 is 869027094221.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 61245360484 + 61245360484 = 247478^2 + 247478^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247478.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 76222421 + ... + 76224027.

Almost surely, 2^122490720968 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 122490720968

122490720968 is an abundant number, since it is smaller than the sum of its proper divisors (171355320787).

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

122490720968 is an equidigital number, since it uses as much as digits as its factorization.

122490720968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256 (or 1627 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

Multiplying 122490720968 by its sum of digits (50), we get a square (6124536048400 = 2474780²).

The spelling of 122490720968 in words is "one hundred twenty-two billion, four hundred ninety million, seven hundred twenty thousand, nine hundred sixty-eight".