641231415570 has 32 divisors (see below), whose sum is σ = 1539104250240. Its totient is φ = 170978504960.

The previous prime is 641231415557. The next prime is 641231415577. The reversal of 641231415570 is 75514132146.

It is a super-2 number, since 2×641231415570² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641231415577) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 716775 + ... + 1340234.

It is an arithmetic number, because the mean of its divisors is an integer number (48097007820).

Almost surely, 2^641231415570 is an apocalyptic number.

641231415570 is an abundant number, since it is smaller than the sum of its proper divisors (897872834670).

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

641231415570 is a wasteful number, since it uses less digits than its factorization.

641231415570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067410.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 641231415570 in words is "six hundred forty-one billion, two hundred thirty-one million, four hundred fifteen thousand, five hundred seventy".