40864633049687 has 2 divisors, whose sum is σ = 40864633049688. Its totient is φ = 40864633049686.

The previous prime is 40864633049573. The next prime is 40864633049689. The reversal of 40864633049687 is 78694033646804.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40864633049687 is a prime.

Together with 40864633049689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40864633049689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20432316524843 + 20432316524844.

It is an arithmetic number, because the mean of its divisors is an integer number (20432316524844).

Almost surely, 2^{40864633049687} is an apocalyptic number.

40864633049687 is a deficient number, since it is larger than the sum of its proper divisors (1).

40864633049687 is an equidigital number, since it uses as much as digits as its factorization.

40864633049687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 501645312, while the sum is 68.

The spelling of 40864633049687 in words is "forty trillion, eight hundred sixty-four billion, six hundred thirty-three million, forty-nine thousand, six hundred eighty-seven".