6402969810 has 48 divisors (see below), whose sum is σ = 17264310336. Its totient is φ = 1707457968.

The previous prime is 6402969757. The next prime is 6402969821. The reversal of 6402969810 is 189692046.

It is a happy number.

It is a super-2 number, since 2×6402969810² = 81996044775542872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon 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, 1315054 + ... + 1319913.

It is an arithmetic number, because the mean of its divisors is an integer number (359673132).

Almost surely, 2^6402969810 is an apocalyptic number.

6402969810 is an abundant number, since it is smaller than the sum of its proper divisors (10861340526).

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

6402969810 is a wasteful number, since it uses less digits than its factorization.

6402969810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634989 (or 2634977 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 6402969810 is about 80018.5591597349. The cubic root of 6402969810 is about 1856.9226689724.

The spelling of 6402969810 in words is "six billion, four hundred two million, nine hundred sixty-nine thousand, eight hundred ten".