40400400340667 has 8 divisors (see below), whose sum is σ = 41341186286400. Its totient is φ = 39459670838280.

The previous prime is 40400400340549. The next prime is 40400400340757. The reversal of 40400400340667 is 76604300400404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40400400340667 - 2²⁰ = 40400399292091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40400400340667.

It is not an unprimeable number, because it can be changed into a prime (40400480340667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12660917 + ... + 15527382.

It is an arithmetic number, because the mean of its divisors is an integer number (5167648285800).

Almost surely, 2^{40400400340667} is an apocalyptic number.

40400400340667 is a deficient number, since it is larger than the sum of its proper divisors (940785945733).

40400400340667 is a wasteful number, since it uses less digits than its factorization.

40400400340667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28221673.

The product of its (nonzero) digits is 193536, while the sum is 38.

The spelling of 40400400340667 in words is "forty trillion, four hundred billion, four hundred million, three hundred forty thousand, six hundred sixty-seven".