122588127978 has 16 divisors (see below), whose sum is σ = 245285590176. Its totient is φ = 40844486960.

The previous prime is 122588127953. The next prime is 122588128027. The reversal of 122588127978 is 879721885221.

It is a Curzon 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, 4541013 + ... + 4567928.

It is an arithmetic number, because the mean of its divisors is an integer number (15330349386).

Almost surely, 2^122588127978 is an apocalyptic number.

122588127978 is an abundant number, since it is smaller than the sum of its proper divisors (122697462198).

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

122588127978 is a wasteful number, since it uses less digits than its factorization.

122588127978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9111189.

The product of its digits is 9031680, while the sum is 60.

The spelling of 122588127978 in words is "one hundred twenty-two billion, five hundred eighty-eight million, one hundred twenty-seven thousand, nine hundred seventy-eight".