40699707644 has 12 divisors (see below), whose sum is σ = 74973145800. Its totient is φ = 19278808848.

The previous prime is 40699707623. The next prime is 40699707683. The reversal of 40699707644 is 44670799604.

40699707644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40699707644.

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, 267761159 + ... + 267761310.

It is an arithmetic number, because the mean of its divisors is an integer number (6247762150).

Almost surely, 2^40699707644 is an apocalyptic number.

It is an amenable number.

40699707644 is a deficient number, since it is larger than the sum of its proper divisors (34273438156).

40699707644 is a wasteful number, since it uses less digits than its factorization.

40699707644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535522492 (or 535522490 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 40699707644 in words is "forty billion, six hundred ninety-nine million, seven hundred seven thousand, six hundred forty-four".