40905513784 has 16 divisors (see below), whose sum is σ = 76704730920. Its totient is φ = 20450918880.

The previous prime is 40905513769. The next prime is 40905513797. The reversal of 40905513784 is 48731550904.

It is a super-2 number, since 2×40905513784² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132759 + ... + 315334.

Almost surely, 2^40905513784 is an apocalyptic number.

It is an amenable number.

40905513784 is a deficient number, since it is larger than the sum of its proper divisors (35799217136).

40905513784 is a wasteful number, since it uses less digits than its factorization.

40905513784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459510 (or 459506 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 40905513784 in words is "forty billion, nine hundred five million, five hundred thirteen thousand, seven hundred eighty-four".