40864633049957 has 2 divisors, whose sum is σ = 40864633049958. Its totient is φ = 40864633049956.

The previous prime is 40864633049873. The next prime is 40864633049963. The reversal of 40864633049957 is 75994033646804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36554188552036 + 4310444497921 = 6046006^2 + 2076161^2 .

It is a cyclic number.

It is not a de Polignac number, because 40864633049957 - 2²⁰ = 40864632001381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40864633049257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20432316524978 + 20432316524979.

It is an arithmetic number, because the mean of its divisors is an integer number (20432316524979).

Almost surely, 2^{40864633049957} is an apocalyptic number.

It is an amenable number.

40864633049957 is a deficient number, since it is larger than the sum of its proper divisors (1).

40864633049957 is an equidigital number, since it uses as much as digits as its factorization.

40864633049957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 470292480, while the sum is 68.

The spelling of 40864633049957 in words is "forty trillion, eight hundred sixty-four billion, six hundred thirty-three million, forty-nine thousand, nine hundred fifty-seven".