40407036667 has 4 divisors (see below), whose sum is σ = 40407980760. Its totient is φ = 40406092576.

The previous prime is 40407036623. The next prime is 40407036671. The reversal of 40407036667 is 76663070404.

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 40407036667 - 2²⁷ = 40272818939 is a prime.

It is a super-2 number, since 2×40407036667² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40467036667) 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, 404638 + ... + 494515.

It is an arithmetic number, because the mean of its divisors is an integer number (10101995190).

Almost surely, 2^40407036667 is an apocalyptic number.

40407036667 is a deficient number, since it is larger than the sum of its proper divisors (944093).

40407036667 is an equidigital number, since it uses as much as digits as its factorization.

40407036667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944092.

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 40407036667 in words is "forty billion, four hundred seven million, thirty-six thousand, six hundred sixty-seven".