40480277864 has 72 divisors (see below), whose sum is σ = 82954097730. Its totient is φ = 18409524480.

The previous prime is 40480277857. The next prime is 40480277939. The reversal of 40480277864 is 46877208404.

It can be written as a sum of positive squares in 9 ways, for example, as 3099148900 + 37381128964 = 55670^2 + 193342^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 223647854 + ... + 223648034.

Almost surely, 2^40480277864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40480277864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41477048865).

40480277864 is an abundant number, since it is smaller than the sum of its proper divisors (42473819866).

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

40480277864 is a wasteful number, since it uses less digits than its factorization.

40480277864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 50.

The spelling of 40480277864 in words is "forty billion, four hundred eighty million, two hundred seventy-seven thousand, eight hundred sixty-four".