40689453816423 has 24 divisors (see below), whose sum is σ = 62612714247408. Its totient is φ = 25374007994112.

The previous prime is 40689453816413. The next prime is 40689453816461. The reversal of 40689453816423 is 32461835498604.

40689453816423 is a `hidden beast` number, since 4 + 0 + 6 + 8 + 94 + 538 + 1 + 6 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 40689453816423 - 2¹⁷ = 40689453685351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40689453816413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 815754640 + ... + 815804517.

It is an arithmetic number, because the mean of its divisors is an integer number (2608863093642).

Almost surely, 2^{40689453816423} is an apocalyptic number.

40689453816423 is a deficient number, since it is larger than the sum of its proper divisors (21923260430985).

40689453816423 is a wasteful number, since it uses less digits than its factorization.

40689453816423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1631559343 (or 1631559340 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 63.

The spelling of 40689453816423 in words is "forty trillion, six hundred eighty-nine billion, four hundred fifty-three million, eight hundred sixteen thousand, four hundred twenty-three".