40199813679 has 16 divisors (see below), whose sum is σ = 55168056320. Its totient is φ = 26026846560.

The previous prime is 40199813653. The next prime is 40199813741. The reversal of 40199813679 is 97631899104.

40199813679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40199813679 - 2¹² = 40199809583 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 (40199813639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375867 + ... + 1404780.

It is an arithmetic number, because the mean of its divisors is an integer number (3448003520).

Almost surely, 2^40199813679 is an apocalyptic number.

40199813679 is a deficient number, since it is larger than the sum of its proper divisors (14968242641).

40199813679 is a wasteful number, since it uses less digits than its factorization.

40199813679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780790.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The spelling of 40199813679 in words is "forty billion, one hundred ninety-nine million, eight hundred thirteen thousand, six hundred seventy-nine".