40415752693 has 2 divisors, whose sum is σ = 40415752694. Its totient is φ = 40415752692.

The previous prime is 40415752681. The next prime is 40415752733. The reversal of 40415752693 is 39625751404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36260918929 + 4154833764 = 190423^2 + 64458^2 .

It is a cyclic number.

It is not a de Polignac number, because 40415752693 - 2⁵ = 40415752661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40415750693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20207876346 + 20207876347.

It is an arithmetic number, because the mean of its divisors is an integer number (20207876347).

Almost surely, 2^40415752693 is an apocalyptic number.

It is an amenable number.

40415752693 is a deficient number, since it is larger than the sum of its proper divisors (1).

40415752693 is an equidigital number, since it uses as much as digits as its factorization.

40415752693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 40415752693 in words is "forty billion, four hundred fifteen million, seven hundred fifty-two thousand, six hundred ninety-three".