40864633049257 has 2 divisors, whose sum is σ = 40864633049258. Its totient is φ = 40864633049256.

The previous prime is 40864633049237. The next prime is 40864633049333. The reversal of 40864633049257 is 75294033646804.

40864633049257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40560454326681 + 304178722576 = 6368709^2 + 551524^2 .

It is a cyclic number.

It is not a de Polignac number, because 40864633049257 - 2¹⁵ = 40864633016489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40864633049195 and 40864633049204.

It is not a weakly prime, because it can be changed into another prime (40864633049237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20432316524628 + 20432316524629.

It is an arithmetic number, because the mean of its divisors is an integer number (20432316524629).

Almost surely, 2^{40864633049257} is an apocalyptic number.

It is an amenable number.

40864633049257 is a deficient number, since it is larger than the sum of its proper divisors (1).

40864633049257 is an equidigital number, since it uses as much as digits as its factorization.

40864633049257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104509440, while the sum is 61.

The spelling of 40864633049257 in words is "forty trillion, eight hundred sixty-four billion, six hundred thirty-three million, forty-nine thousand, two hundred fifty-seven".