6406925784 has 32 divisors (see below), whose sum is σ = 18305502720. Its totient is φ = 1830550176.

The previous prime is 6406925783. The next prime is 6406925801. The reversal of 6406925784 is 4875296046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406925783) 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, 19068064 + ... + 19068399.

It is an arithmetic number, because the mean of its divisors is an integer number (572046960).

Almost surely, 2^6406925784 is an apocalyptic number.

It is an amenable number.

6406925784 is an abundant number, since it is smaller than the sum of its proper divisors (11898576936).

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

6406925784 is a wasteful number, since it uses less digits than its factorization.

6406925784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38136479 (or 38136475 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The square root of 6406925784 is about 80043.2744457646. The cubic root of 6406925784 is about 1857.3050137113.

The spelling of 6406925784 in words is "six billion, four hundred six million, nine hundred twenty-five thousand, seven hundred eighty-four".