40135177243757 has 2 divisors, whose sum is σ = 40135177243758. Its totient is φ = 40135177243756.

The previous prime is 40135177243729. The next prime is 40135177243769. The reversal of 40135177243757 is 75734277153104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23168184195556 + 16966993048201 = 4813334^2 + 4119101^2 .

It is a cyclic number.

It is not a de Polignac number, because 40135177243757 - 2³⁸ = 39860299336813 is a prime.

It is a super-2 number, since 2×40135177243757² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40135177240757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20067588621878 + 20067588621879.

It is an arithmetic number, because the mean of its divisors is an integer number (20067588621879).

Almost surely, 2^{40135177243757} is an apocalyptic number.

It is an amenable number.

40135177243757 is a deficient number, since it is larger than the sum of its proper divisors (1).

40135177243757 is an equidigital number, since it uses as much as digits as its factorization.

40135177243757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17287200, while the sum is 56.

The spelling of 40135177243757 in words is "forty trillion, one hundred thirty-five billion, one hundred seventy-seven million, two hundred forty-three thousand, seven hundred fifty-seven".