32563881620 has 48 divisors (see below), whose sum is σ = 72362481408. Its totient is φ = 12283729920.

The previous prime is 32563881587. The next prime is 32563881631. The reversal of 32563881620 is 2618836523.

It is a super-2 number, since 2×32563881620² (a number of 22 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 465869 + ... + 531188.

It is an arithmetic number, because the mean of its divisors is an integer number (1507551696).

Almost surely, 2^32563881620 is an apocalyptic number.

It is an amenable number.

32563881620 is an abundant number, since it is smaller than the sum of its proper divisors (39798599788).

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

32563881620 is a wasteful number, since it uses less digits than its factorization.

32563881620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997160 (or 997158 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 32563881620 in words is "thirty-two billion, five hundred sixty-three million, eight hundred eighty-one thousand, six hundred twenty".