6400275870 has 64 divisors (see below), whose sum is σ = 15478594560. Its totient is φ = 1693684608.

The previous prime is 6400275859. The next prime is 6400275881. The reversal of 6400275870 is 785720046.

It is an interprime number because it is at equal distance from previous prime (6400275859) and next prime (6400275881).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2735161 + ... + 2737499.

It is an arithmetic number, because the mean of its divisors is an integer number (241853040).

Almost surely, 2^6400275870 is an apocalyptic number.

6400275870 is an abundant number, since it is smaller than the sum of its proper divisors (9078318690).

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

6400275870 is a wasteful number, since it uses less digits than its factorization.

6400275870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 6400275870 is about 80001.7241689203. The cubic root of 6400275870 is about 1856.6622096266.

The spelling of 6400275870 in words is "six billion, four hundred million, two hundred seventy-five thousand, eight hundred seventy".