32638621858860 has 48 divisors (see below), whose sum is σ = 91398552537600. Its totient is φ = 8702640940224.

The previous prime is 32638621858847. The next prime is 32638621858861. The reversal of 32638621858860 is 6885812683623.

It is a junction number, because it is equal to n+sod(n) for n = 32638621858791 and 32638621858800.

It is not an unprimeable number, because it can be changed into a prime (32638621858861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30454980 + ... + 31508459.

It is an arithmetic number, because the mean of its divisors is an integer number (1904136511200).

Almost surely, 2^{32638621858860} is an apocalyptic number.

32638621858860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32638621858860 is an abundant number, since it is smaller than the sum of its proper divisors (58759930678740).

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

32638621858860 is a wasteful number, since it uses less digits than its factorization.

32638621858860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61972230 (or 61972228 counting only the distinct ones).

The product of its (nonzero) digits is 159252480, while the sum is 66.

The spelling of 32638621858860 in words is "thirty-two trillion, six hundred thirty-eight billion, six hundred twenty-one million, eight hundred fifty-eight thousand, eight hundred sixty".