642700322037126 has 96 divisors (see below), whose sum is σ = 1421692515210240. Its totient is φ = 209794916343168.

The previous prime is 642700322037107. The next prime is 642700322037131. The reversal of 642700322037126 is 621730223007246.

642700322037126 is a `hidden beast` number, since 6 + 4 + 270 + 0 + 3 + 2 + 2 + 0 + 371 + 2 + 6 = 666.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 105564565 + ... + 111486671.

It is an arithmetic number, because the mean of its divisors is an integer number (14809297033440).

Almost surely, 2^{642700322037126} is an apocalyptic number.

642700322037126 is an abundant number, since it is smaller than the sum of its proper divisors (778992193173114).

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

642700322037126 is a wasteful number, since it uses less digits than its factorization.

642700322037126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5922818 (or 5922815 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 45.

The spelling of 642700322037126 in words is "six hundred forty-two trillion, seven hundred billion, three hundred twenty-two million, thirty-seven thousand, one hundred twenty-six".