40793632307861 has 2 divisors, whose sum is σ = 40793632307862. Its totient is φ = 40793632307860.

The previous prime is 40793632307809. The next prime is 40793632307863. The reversal of 40793632307861 is 16870323639704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26635766170225 + 14157866137636 = 5160985^2 + 3762694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40793632307861 is a prime.

Together with 40793632307863, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40793632307861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40793632307863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20396816153930 + 20396816153931.

It is an arithmetic number, because the mean of its divisors is an integer number (20396816153931).

Almost surely, 2^{40793632307861} is an apocalyptic number.

It is an amenable number.

40793632307861 is a deficient number, since it is larger than the sum of its proper divisors (1).

40793632307861 is an equidigital number, since it uses as much as digits as its factorization.

40793632307861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 59.

The spelling of 40793632307861 in words is "forty trillion, seven hundred ninety-three billion, six hundred thirty-two million, three hundred seven thousand, eight hundred sixty-one".