40634447713 has 2 divisors, whose sum is σ = 40634447714. Its totient is φ = 40634447712.

The previous prime is 40634447701. The next prime is 40634447771. The reversal of 40634447713 is 31774443604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30669816384 + 9964631329 = 175128^2 + 99823^2 .

It is a cyclic number.

It is not a de Polignac number, because 40634447713 - 2⁵ = 40634447681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40634447713.

It is not a weakly prime, because it can be changed into another prime (40634547713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20317223856 + 20317223857.

It is an arithmetic number, because the mean of its divisors is an integer number (20317223857).

Almost surely, 2^40634447713 is an apocalyptic number.

It is an amenable number.

40634447713 is a deficient number, since it is larger than the sum of its proper divisors (1).

40634447713 is an equidigital number, since it uses as much as digits as its factorization.

40634447713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 40634447713 in words is "forty billion, six hundred thirty-four million, four hundred forty-seven thousand, seven hundred thirteen".