6475003920 has 800 divisors, whose sum is σ = 29556679680. Its totient is φ = 1272775680.

The previous prime is 6475003879. The next prime is 6475003933. The reversal of 6475003920 is 293005746.

6475003920 is a `hidden beast` number, since 64 + 7 + 500 + 3 + 92 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 9479899 + ... + 9480581.

Almost surely, 2^6475003920 is an apocalyptic number.

6475003920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6475003920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14778339840).

6475003920 is an abundant number, since it is smaller than the sum of its proper divisors (23081675760).

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

6475003920 is a wasteful number, since it uses less digits than its factorization.

6475003920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 6475003920 is about 80467.4090548465. The cubic root of 6475003920 is about 1863.8602451294.

The spelling of 6475003920 in words is "six billion, four hundred seventy-five million, three thousand, nine hundred twenty".