40279167699 has 4 divisors (see below), whose sum is σ = 53705556936. Its totient is φ = 26852778464.

The previous prime is 40279167697. The next prime is 40279167737. The reversal of 40279167699 is 99676197204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40279167699 - 2¹ = 40279167697 is a prime.

It is a super-2 number, since 2×40279167699² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40279167697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6713194614 + ... + 6713194619.

It is an arithmetic number, because the mean of its divisors is an integer number (13426389234).

Almost surely, 2^40279167699 is an apocalyptic number.

40279167699 is a deficient number, since it is larger than the sum of its proper divisors (13426389237).

40279167699 is a wasteful number, since it uses less digits than its factorization.

40279167699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13426389236.

The product of its (nonzero) digits is 10287648, while the sum is 60.

The spelling of 40279167699 in words is "forty billion, two hundred seventy-nine million, one hundred sixty-seven thousand, six hundred ninety-nine".