32638426320 has 40 divisors (see below), whose sum is σ = 101179122336. Its totient is φ = 8703580288.

The previous prime is 32638426319. The next prime is 32638426343. The reversal of 32638426320 is 2362483623.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 67996482 + ... + 67996961.

Almost surely, 2^32638426320 is an apocalyptic number.

32638426320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32638426320 is an abundant number, since it is smaller than the sum of its proper divisors (68540696016).

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

32638426320 is a wasteful number, since it uses less digits than its factorization.

32638426320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135993459 (or 135993453 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 32638426320 in words is "thirty-two billion, six hundred thirty-eight million, four hundred twenty-six thousand, three hundred twenty".