122642978586384 has 20 divisors (see below), whose sum is σ = 316827694681616. Its totient is φ = 40880992862112.

The previous prime is 122642978586353. The next prime is 122642978586433. The reversal of 122642978586384 is 483685879246221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277531026894 + ... + 1277531026989.

Almost surely, 2^{122642978586384} is an apocalyptic number.

It is an amenable number.

122642978586384 is an abundant number, since it is smaller than the sum of its proper divisors (194184716095232).

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

122642978586384 is a wasteful number, since it uses less digits than its factorization.

122642978586384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555062053894 (or 2555062053888 counting only the distinct ones).

The product of its digits is 2229534720, while the sum is 75.

The spelling of 122642978586384 in words is "one hundred twenty-two trillion, six hundred forty-two billion, nine hundred seventy-eight million, five hundred eighty-six thousand, three hundred eighty-four".