6402645360 has 120 divisors (see below), whose sum is σ = 21516930864. Its totient is φ = 1706204160.

The previous prime is 6402645331. The next prime is 6402645371. The reversal of 6402645360 is 635462046.

6402645360 is a `hidden beast` number, since 6 + 4 + 0 + 2 + 645 + 3 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1755699 + ... + 1759341.

Almost surely, 2^6402645360 is an apocalyptic number.

6402645360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6402645360 is an abundant number, since it is smaller than the sum of its proper divisors (15114285504).

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

6402645360 is a wasteful number, since it uses less digits than its factorization.

6402645360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6103 (or 6094 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 6402645360 is about 80016.5317918741. The cubic root of 6402645360 is about 1856.8913039051.

The spelling of 6402645360 in words is "six billion, four hundred two million, six hundred forty-five thousand, three hundred sixty".