32261487872 has 36 divisors (see below), whose sum is σ = 65034600036. Its totient is φ = 15971020800.

The previous prime is 32261487859. The next prime is 32261487883. The reversal of 32261487872 is 27878416223.

It can be written as a sum of positive squares in 2 ways, for example, as 27508212736 + 4753275136 = 165856^2 + 68944^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32261487872.

It is a congruent number.

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, 598013 + ... + 649724.

Almost surely, 2^32261487872 is an apocalyptic number.

32261487872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

32261487872 is an abundant number, since it is smaller than the sum of its proper divisors (32773112164).

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

32261487872 is a wasteful number, since it uses less digits than its factorization.

32261487872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247854 (or 1247840 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 50.

The spelling of 32261487872 in words is "thirty-two billion, two hundred sixty-one million, four hundred eighty-seven thousand, eight hundred seventy-two".