620634375507244 has 12 divisors (see below), whose sum is σ = 1241268751014544. Its totient is φ = 265986160931664.

The previous prime is 620634375507239. The next prime is 620634375507329. The reversal of 620634375507244 is 442705573436026.

620634375507244 is an admirable number.

It is a super-2 number, since 2×620634375507244² (a number of 30 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11082756705459 + ... + 11082756705514.

Almost surely, 2^{620634375507244} is an apocalyptic number.

It is an amenable number.

620634375507244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

620634375507244 is a wasteful number, since it uses less digits than its factorization.

620634375507244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22165513410984 (or 22165513410982 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 58.

The spelling of 620634375507244 in words is "six hundred twenty trillion, six hundred thirty-four billion, three hundred seventy-five million, five hundred seven thousand, two hundred forty-four".