122973075840 has 64 divisors (see below), whose sum is σ = 391976685360. Its totient is φ = 32792819712.

The previous prime is 122973075821. The next prime is 122973075877. The reversal of 122973075840 is 48570379221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 122973075840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32022319 + ... + 32026158.

Almost surely, 2^122973075840 is an apocalyptic number.

122973075840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122973075840 is an abundant number, since it is smaller than the sum of its proper divisors (269003609520).

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

122973075840 is an equidigital number, since it uses as much as digits as its factorization.

122973075840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64048499 (or 64048487 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 122973075840 in words is "one hundred twenty-two billion, nine hundred seventy-three million, seventy-five thousand, eight hundred forty".