6425856888 has 64 divisors (see below), whose sum is σ = 18129398400. Its totient is φ = 1880081280.

The previous prime is 6425856887. The next prime is 6425856889. The reversal of 6425856888 is 8886585246.

It is an interprime number because it is at equal distance from previous prime (6425856887) and next prime (6425856889).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6425856881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412006 + ... + 427317.

It is an arithmetic number, because the mean of its divisors is an integer number (283271850).

Almost surely, 2^6425856888 is an apocalyptic number.

It is an amenable number.

6425856888 is an abundant number, since it is smaller than the sum of its proper divisors (11703541512).

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

6425856888 is a wasteful number, since it uses less digits than its factorization.

6425856888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839372 (or 839368 counting only the distinct ones).

The product of its digits is 29491200, while the sum is 60.

The square root of 6425856888 is about 80161.4426516888. The cubic root of 6425856888 is about 1859.1325287767.

The spelling of 6425856888 in words is "six billion, four hundred twenty-five million, eight hundred fifty-six thousand, eight hundred eighty-eight".