40368558657 has 16 divisors (see below), whose sum is σ = 61598630912. Its totient is φ = 23036009040.

The previous prime is 40368558653. The next prime is 40368558689. The reversal of 40368558657 is 75685586304.

It is not a de Polignac number, because 40368558657 - 2² = 40368558653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40368558597 and 40368558606.

It is not an unprimeable number, because it can be changed into a prime (40368558653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1306819 + ... + 1337352.

It is an arithmetic number, because the mean of its divisors is an integer number (3849914432).

Almost surely, 2^40368558657 is an apocalyptic number.

It is an amenable number.

40368558657 is a deficient number, since it is larger than the sum of its proper divisors (21230072255).

40368558657 is a wasteful number, since it uses less digits than its factorization.

40368558657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644908.

The product of its (nonzero) digits is 24192000, while the sum is 57.

The spelling of 40368558657 in words is "forty billion, three hundred sixty-eight million, five hundred fifty-eight thousand, six hundred fifty-seven".