40124782864 has 20 divisors (see below), whose sum is σ = 77922155520. Its totient is φ = 20015839520.

The previous prime is 40124782861. The next prime is 40124782903. The reversal of 40124782864 is 46828742104.

40124782864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40124782861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2902384 + ... + 2916175.

It is an arithmetic number, because the mean of its divisors is an integer number (3896107776).

Almost surely, 2^40124782864 is an apocalyptic number.

It is an amenable number.

40124782864 is a deficient number, since it is larger than the sum of its proper divisors (37797372656).

40124782864 is a wasteful number, since it uses less digits than its factorization.

40124782864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5818998 (or 5818992 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 46.

The spelling of 40124782864 in words is "forty billion, one hundred twenty-four million, seven hundred eighty-two thousand, eight hundred sixty-four".