122756978146 has 32 divisors (see below), whose sum is σ = 203885786880. Its totient is φ = 54968144400.

The previous prime is 122756978131. The next prime is 122756978161. The reversal of 122756978146 is 641879657221.

It is an interprime number because it is at equal distance from previous prime (122756978131) and next prime (122756978161).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275701 + ... + 567031.

It is an arithmetic number, because the mean of its divisors is an integer number (6371430840).

Almost surely, 2^122756978146 is an apocalyptic number.

122756978146 is a deficient number, since it is larger than the sum of its proper divisors (81128808734).

122756978146 is a wasteful number, since it uses less digits than its factorization.

122756978146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291630.

The product of its digits is 10160640, while the sum is 58.

The spelling of 122756978146 in words is "one hundred twenty-two billion, seven hundred fifty-six million, nine hundred seventy-eight thousand, one hundred forty-six".