40744888993 has 2 divisors, whose sum is σ = 40744888994. Its totient is φ = 40744888992.

The previous prime is 40744888931. The next prime is 40744889011. The reversal of 40744888993 is 39988844704.

40744888993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39381211809 + 1363677184 = 198447^2 + 36928^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40744888993 is a prime.

It is not a weakly prime, because it can be changed into another prime (40744868993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20372444496 + 20372444497.

It is an arithmetic number, because the mean of its divisors is an integer number (20372444497).

Almost surely, 2^40744888993 is an apocalyptic number.

It is an amenable number.

40744888993 is a deficient number, since it is larger than the sum of its proper divisors (1).

40744888993 is an equidigital number, since it uses as much as digits as its factorization.

40744888993 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 40744888993 in words is "forty billion, seven hundred forty-four million, eight hundred eighty-eight thousand, nine hundred ninety-three".