40788683893 has 2 divisors, whose sum is σ = 40788683894. Its totient is φ = 40788683892.

The previous prime is 40788683867. The next prime is 40788683917. The reversal of 40788683893 is 39838688704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40756341924 + 32341969 = 201882^2 + 5687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40788683893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40788683843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20394341946 + 20394341947.

It is an arithmetic number, because the mean of its divisors is an integer number (20394341947).

Almost surely, 2^40788683893 is an apocalyptic number.

It is an amenable number.

40788683893 is a deficient number, since it is larger than the sum of its proper divisors (1).

40788683893 is an equidigital number, since it uses as much as digits as its factorization.

40788683893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55738368, while the sum is 64.

The spelling of 40788683893 in words is "forty billion, seven hundred eighty-eight million, six hundred eighty-three thousand, eight hundred ninety-three".