6390951996 has 72 divisors (see below), whose sum is σ = 17615574144. Its totient is φ = 1787672640.

The previous prime is 6390951979. The next prime is 6390952003. The reversal of 6390951996 is 6991590936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120936 + ... + 165551.

It is an arithmetic number, because the mean of its divisors is an integer number (244660752).

Almost surely, 2^6390951996 is an apocalyptic number.

6390951996 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6390951996 is an abundant number, since it is smaller than the sum of its proper divisors (11224622148).

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

6390951996 is a wasteful number, since it uses less digits than its factorization.

6390951996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286531 (or 286516 counting only the distinct ones).

The product of its (nonzero) digits is 3542940, while the sum is 57.

The square root of 6390951996 is about 79943.4299739510. The cubic root of 6390951996 is about 1855.7601809234.

The spelling of 6390951996 in words is "six billion, three hundred ninety million, nine hundred fifty-one thousand, nine hundred ninety-six".