32430772672 has 28 divisors (see below), whose sum is σ = 64564478440. Its totient is φ = 16162557696.

The previous prime is 32430772657. The next prime is 32430772691. The reversal of 32430772672 is 27627703423.

It is a super-2 number, since 2×32430772672² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805647 + ... + 844942.

It is an arithmetic number, because the mean of its divisors is an integer number (2305874230).

Almost surely, 2^32430772672 is an apocalyptic number.

32430772672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

32430772672 is a deficient number, since it is larger than the sum of its proper divisors (32133705768).

32430772672 is a wasteful number, since it uses less digits than its factorization.

32430772672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650908 (or 1650898 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 43.

The spelling of 32430772672 in words is "thirty-two billion, four hundred thirty million, seven hundred seventy-two thousand, six hundred seventy-two".