40347662047157 has 2 divisors, whose sum is σ = 40347662047158. Its totient is φ = 40347662047156.

The previous prime is 40347662047153. The next prime is 40347662047171. The reversal of 40347662047157 is 75174026674304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28687957180996 + 11659704866161 = 5356114^2 + 3414631^2 .

It is a cyclic number.

It is not a de Polignac number, because 40347662047157 - 2² = 40347662047153 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40347662047153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20173831023578 + 20173831023579.

It is an arithmetic number, because the mean of its divisors is an integer number (20173831023579).

Almost surely, 2^{40347662047157} is an apocalyptic number.

It is an amenable number.

40347662047157 is a deficient number, since it is larger than the sum of its proper divisors (1).

40347662047157 is an equidigital number, since it uses as much as digits as its factorization.

40347662047157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23708160, while the sum is 56.

The spelling of 40347662047157 in words is "forty trillion, three hundred forty-seven billion, six hundred sixty-two million, forty-seven thousand, one hundred fifty-seven".