6401839172 has 24 divisors (see below), whose sum is σ = 11320453536. Its totient is φ = 3167515008.

The previous prime is 6401839133. The next prime is 6401839187. The reversal of 6401839172 is 2719381046.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279623 + ... + 301649.

It is an arithmetic number, because the mean of its divisors is an integer number (471685564).

Almost surely, 2^6401839172 is an apocalyptic number.

It is an amenable number.

6401839172 is a deficient number, since it is larger than the sum of its proper divisors (4918614364).

6401839172 is a wasteful number, since it uses less digits than its factorization.

6401839172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22787 (or 22785 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 6401839172 is about 80011.4939992999. The cubic root of 6401839172 is about 1856.8133639163.

The spelling of 6401839172 in words is "six billion, four hundred one million, eight hundred thirty-nine thousand, one hundred seventy-two".