641332315515234 has 32 divisors (see below), whose sum is σ = 1465906644587520. Its totient is φ = 183237278292432.

The previous prime is 641332315515233. The next prime is 641332315515251. The reversal of 641332315515234 is 432515513233146.

It is a happy number.

It is a super-2 number, since 2×641332315515234² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641332315515233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7001664 + ... + 36492299.

It is an arithmetic number, because the mean of its divisors is an integer number (45809582643360).

Almost surely, 2^{641332315515234} is an apocalyptic number.

641332315515234 is an abundant number, since it is smaller than the sum of its proper divisors (824574329072286).

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

641332315515234 is a wasteful number, since it uses less digits than its factorization.

641332315515234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43845054.

The product of its digits is 3888000, while the sum is 48.

The spelling of 641332315515234 in words is "six hundred forty-one trillion, three hundred thirty-two billion, three hundred fifteen million, five hundred fifteen thousand, two hundred thirty-four".