40011542947691 has 8 divisors (see below), whose sum is σ = 45727582777344. Its totient is φ = 34295529398760.

The previous prime is 40011542947661. The next prime is 40011542947697. The reversal of 40011542947691 is 19674924511004.

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

It is not a de Polignac number, because 40011542947691 - 2⁶ = 40011542947627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40011542947697) 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, 3191945 + ... + 9497978.

It is an arithmetic number, because the mean of its divisors is an integer number (5715947847168).

Almost surely, 2^{40011542947691} is an apocalyptic number.

40011542947691 is a deficient number, since it is larger than the sum of its proper divisors (5716039829653).

40011542947691 is a wasteful number, since it uses less digits than its factorization.

40011542947691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13140361.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 40011542947691 in words is "forty trillion, eleven billion, five hundred forty-two million, nine hundred forty-seven thousand, six hundred ninety-one".