40699707643 has 4 divisors (see below), whose sum is σ = 46513951600. Its totient is φ = 34885463688.

The previous prime is 40699707623. The next prime is 40699707683. The reversal of 40699707643 is 34670799604.

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 40699707643 - 2¹⁷ = 40699576571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40699707613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2907121968 + ... + 2907121981.

It is an arithmetic number, because the mean of its divisors is an integer number (11628487900).

Almost surely, 2^40699707643 is an apocalyptic number.

40699707643 is a deficient number, since it is larger than the sum of its proper divisors (5814243957).

40699707643 is an equidigital number, since it uses as much as digits as its factorization.

40699707643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5814243956.

The product of its (nonzero) digits is 6858432, while the sum is 55.

The spelling of 40699707643 in words is "forty billion, six hundred ninety-nine million, seven hundred seven thousand, six hundred forty-three".