32172639047 has 8 divisors (see below), whose sum is σ = 32512989600. Its totient is φ = 31834075680.

The previous prime is 32172639041. The next prime is 32172639089. The reversal of 32172639047 is 74093627123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32172639047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32172638989 and 32172639007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32172639041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410588 + ... + 482625.

It is an arithmetic number, because the mean of its divisors is an integer number (4064123700).

Almost surely, 2^32172639047 is an apocalyptic number.

32172639047 is a deficient number, since it is larger than the sum of its proper divisors (340350553).

32172639047 is a wasteful number, since it uses less digits than its factorization.

32172639047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893593.

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 32172639047 in words is "thirty-two billion, one hundred seventy-two million, six hundred thirty-nine thousand, forty-seven".