6425618888 has 32 divisors (see below), whose sum is σ = 13093865400. Its totient is φ = 2938457088.

The previous prime is 6425618887. The next prime is 6425618897. The reversal of 6425618888 is 8888165246.

It can be written as a sum of positive squares in 4 ways, for example, as 4863946564 + 1561672324 = 69742^2 + 39518^2 .

It is not an unprimeable number, because it can be changed into a prime (6425618887) 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, 272081 + ... + 294752.

Almost surely, 2^6425618888 is an apocalyptic number.

It is an amenable number.

6425618888 is an abundant number, since it is smaller than the sum of its proper divisors (6668246512).

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

6425618888 is a wasteful number, since it uses less digits than its factorization.

6425618888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566961 (or 566957 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 56.

The square root of 6425618888 is about 80159.9581337216. The cubic root of 6425618888 is about 1859.1095757287.

The spelling of 6425618888 in words is "six billion, four hundred twenty-five million, six hundred eighteen thousand, eight hundred eighty-eight".