122687912644 has 12 divisors (see below), whose sum is σ = 234222378768. Its totient is φ = 55767233000.

The previous prime is 122687912609. The next prime is 122687912701. The reversal of 122687912644 is 446219786221.

It is a super-3 number, since 3×122687912644³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122687912591 and 122687912600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1394180782 + ... + 1394180869.

It is an arithmetic number, because the mean of its divisors is an integer number (19518531564).

Almost surely, 2^122687912644 is an apocalyptic number.

It is an amenable number.

122687912644 is a deficient number, since it is larger than the sum of its proper divisors (111534466124).

122687912644 is a wasteful number, since it uses less digits than its factorization.

122687912644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788361666 (or 2788361664 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The spelling of 122687912644 in words is "one hundred twenty-two billion, six hundred eighty-seven million, nine hundred twelve thousand, six hundred forty-four".