40452558813 has 8 divisors (see below), whose sum is σ = 59929716800. Its totient is φ = 26968372524.

The previous prime is 40452558749. The next prime is 40452558821. The reversal of 40452558813 is 31885525404.

40452558813 is a `hidden beast` number, since 4 + 0 + 4 + 52 + 5 + 588 + 13 = 666.

It is not a de Polignac number, because 40452558813 - 2⁶ = 40452558749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40452550813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749121433 + ... + 749121486.

It is an arithmetic number, because the mean of its divisors is an integer number (7491214600).

Almost surely, 2^40452558813 is an apocalyptic number.

It is an amenable number.

40452558813 is a deficient number, since it is larger than the sum of its proper divisors (19477157987).

40452558813 is a wasteful number, since it uses less digits than its factorization.

40452558813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498242928 (or 1498242922 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 45.

The spelling of 40452558813 in words is "forty billion, four hundred fifty-two million, five hundred fifty-eight thousand, eight hundred thirteen".