475499000640 has 112 divisors (see below), whose sum is σ = 1558409725440. Its totient is φ = 122709411840.

The previous prime is 475499000567. The next prime is 475499000651. The reversal of 475499000640 is 46000994574.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 475499000640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7959135 + ... + 8018654.

Almost surely, 2^475499000640 is an apocalyptic number.

475499000640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

475499000640 is an abundant number, since it is smaller than the sum of its proper divisors (1082910724800).

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

475499000640 is a wasteful number, since it uses less digits than its factorization.

475499000640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15977840 (or 15977830 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 475499000640 in words is "four hundred seventy-five billion, four hundred ninety-nine million, six hundred forty", and thus it is an aban number.