407663961240 has 64 divisors (see below), whose sum is σ = 1287359884800. Its totient is φ = 102988789632.

The previous prime is 407663961239. The next prime is 407663961281. The reversal of 407663961240 is 42169366704.

It is a self number, because there is not a number n which added to its sum of digits gives 407663961240.

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, 89397712 + ... + 89402271.

It is an arithmetic number, because the mean of its divisors is an integer number (20114998200).

Almost surely, 2^407663961240 is an apocalyptic number.

407663961240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

407663961240 is an abundant number, since it is smaller than the sum of its proper divisors (879695923560).

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

407663961240 is a wasteful number, since it uses less digits than its factorization.

407663961240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178800016 (or 178800012 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 407663961240 in words is "four hundred seven billion, six hundred sixty-three million, nine hundred sixty-one thousand, two hundred forty".