6375905646 has 16 divisors (see below), whose sum is σ = 13911067008. Its totient is φ = 1932092600.

The previous prime is 6375905633. The next prime is 6375905651. The reversal of 6375905646 is 6465095736.

It is a happy number.

It is a congruent number.

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, 48302250 + ... + 48302381.

It is an arithmetic number, because the mean of its divisors is an integer number (869441688).

Almost surely, 2^6375905646 is an apocalyptic number.

6375905646 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6375905646 is an abundant number, since it is smaller than the sum of its proper divisors (7535161362).

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

6375905646 is a wasteful number, since it uses less digits than its factorization.

6375905646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96604647.

The product of its (nonzero) digits is 4082400, while the sum is 51.

The square root of 6375905646 is about 79849.2682871922. The cubic root of 6375905646 is about 1854.3026850399.

The spelling of 6375905646 in words is "six billion, three hundred seventy-five million, nine hundred five thousand, six hundred forty-six".