6425138832 has 40 divisors (see below), whose sum is σ = 18969458496. Its totient is φ = 1835753856.

The previous prime is 6425138827. The next prime is 6425138851. The reversal of 6425138832 is 2388315246.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 9560883 + ... + 9561554.

Almost surely, 2^6425138832 is an apocalyptic number.

It is an amenable number.

6425138832 is an abundant number, since it is smaller than the sum of its proper divisors (12544319664).

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

6425138832 is a wasteful number, since it uses less digits than its factorization.

6425138832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19122455 (or 19122449 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 6425138832 is about 80156.9637149512. The cubic root of 6425138832 is about 1859.0632767419.

The spelling of 6425138832 in words is "six billion, four hundred twenty-five million, one hundred thirty-eight thousand, eight hundred thirty-two".