479901389940 has 72 divisors (see below), whose sum is σ = 1663658156160. Its totient is φ = 109691745984.

The previous prime is 479901389923. The next prime is 479901389951. The reversal of 479901389940 is 49983109974.

479901389940 is a `hidden beast` number, since 479 + 9 + 0 + 1 + 38 + 99 + 40 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190435800 + ... + 190438319.

It is an arithmetic number, because the mean of its divisors is an integer number (23106363280).

Almost surely, 2^479901389940 is an apocalyptic number.

It is an amenable number.

479901389940 is an abundant number, since it is smaller than the sum of its proper divisors (1183756766220).

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

479901389940 is a wasteful number, since it uses less digits than its factorization.

479901389940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380874141 (or 380874136 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The spelling of 479901389940 in words is "four hundred seventy-nine billion, nine hundred one million, three hundred eighty-nine thousand, nine hundred forty".