40505501892 has 24 divisors (see below), whose sum is σ = 94532306400. Its totient is φ = 13499052736.

The previous prime is 40505501887. The next prime is 40505501893. The reversal of 40505501892 is 29810550504.

It is a self number, because there is not a number n which added to its sum of digits gives 40505501892.

It is not an unprimeable number, because it can be changed into a prime (40505501893) 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, 286542 + ... + 403877.

It is an arithmetic number, because the mean of its divisors is an integer number (3938846100).

Almost surely, 2^40505501892 is an apocalyptic number.

It is an amenable number.

40505501892 is an abundant number, since it is smaller than the sum of its proper divisors (54026804508).

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

40505501892 is a wasteful number, since it uses less digits than its factorization.

40505501892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695315 (or 695313 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 39.

The spelling of 40505501892 in words is "forty billion, five hundred five million, five hundred one thousand, eight hundred ninety-two".