641174001952 has 24 divisors (see below), whose sum is σ = 1377066891312. Its totient is φ = 291442728000.

The previous prime is 641174001821. The next prime is 641174001991. The reversal of 641174001952 is 259100471146.

It is a happy number.

It is a super-2 number, since 2×641174001952² (a number of 24 digits) contains 22 as substring.

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, 910758174 + ... + 910758877.

It is an arithmetic number, because the mean of its divisors is an integer number (57377787138).

Almost surely, 2^641174001952 is an apocalyptic number.

It is an amenable number.

641174001952 is an abundant number, since it is smaller than the sum of its proper divisors (735892889360).

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

641174001952 is a wasteful number, since it uses less digits than its factorization.

641174001952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821517072 (or 1821517064 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 641174001952 in words is "six hundred forty-one billion, one hundred seventy-four million, one thousand, nine hundred fifty-two".