403964795057988 has 24 divisors (see below), whose sum is σ = 992194233476320. Its totient is φ = 127567830018240.

The previous prime is 403964795057977. The next prime is 403964795058017. The reversal of 403964795057988 is 889750597469304.

It is a self number, because there is not a number n which added to its sum of digits gives 403964795057988.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885887708233 + ... + 885887708688.

Almost surely, 2^{403964795057988} is an apocalyptic number.

It is an amenable number.

403964795057988 is an abundant number, since it is smaller than the sum of its proper divisors (588229438418332).

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

403964795057988 is a wasteful number, since it uses less digits than its factorization.

403964795057988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771775416947 (or 1771775416945 counting only the distinct ones).

The product of its (nonzero) digits is 16460236800, while the sum is 84.

The spelling of 403964795057988 in words is "four hundred three trillion, nine hundred sixty-four billion, seven hundred ninety-five million, fifty-seven thousand, nine hundred eighty-eight".