40743119657 has 2 divisors, whose sum is σ = 40743119658. Its totient is φ = 40743119656.

The previous prime is 40743119647. The next prime is 40743119693. The reversal of 40743119657 is 75691134704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33291286681 + 7451832976 = 182459^2 + 86324^2 .

It is a cyclic number.

It is not a de Polignac number, because 40743119657 - 2²⁴ = 40726342441 is a prime.

It is not a weakly prime, because it can be changed into another prime (40743119647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20371559828 + 20371559829.

It is an arithmetic number, because the mean of its divisors is an integer number (20371559829).

Almost surely, 2^40743119657 is an apocalyptic number.

It is an amenable number.

40743119657 is a deficient number, since it is larger than the sum of its proper divisors (1).

40743119657 is an equidigital number, since it uses as much as digits as its factorization.

40743119657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 40743119657 in words is "forty billion, seven hundred forty-three million, one hundred nineteen thousand, six hundred fifty-seven".