40699707623 has 2 divisors, whose sum is σ = 40699707624. Its totient is φ = 40699707622.

The previous prime is 40699707619. The next prime is 40699707683. The reversal of 40699707623 is 32670799604.

40699707623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40699707623 - 2² = 40699707619 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40699707613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20349853811 + 20349853812.

It is an arithmetic number, because the mean of its divisors is an integer number (20349853812).

Almost surely, 2^40699707623 is an apocalyptic number.

40699707623 is a deficient number, since it is larger than the sum of its proper divisors (1).

40699707623 is an equidigital number, since it uses as much as digits as its factorization.

40699707623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 53.

The spelling of 40699707623 in words is "forty billion, six hundred ninety-nine million, seven hundred seven thousand, six hundred twenty-three".