122879726675780 has 48 divisors (see below), whose sum is σ = 265024733514240. Its totient is φ = 47822910323328.

The previous prime is 122879726675749. The next prime is 122879726675801. The reversal of 122879726675780 is 87576627978221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66546869 + ... + 68368451.

It is an arithmetic number, because the mean of its divisors is an integer number (5521348614880).

Almost surely, 2^{122879726675780} is an apocalyptic number.

122879726675780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122879726675780 is an abundant number, since it is smaller than the sum of its proper divisors (142145006838460).

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

122879726675780 is a wasteful number, since it uses less digits than its factorization.

122879726675780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912788 (or 1912786 counting only the distinct ones).

The product of its (nonzero) digits is 1991485440, while the sum is 77.

The spelling of 122879726675780 in words is "one hundred twenty-two trillion, eight hundred seventy-nine billion, seven hundred twenty-six million, six hundred seventy-five thousand, seven hundred eighty".