40368857537557 has 16 divisors (see below), whose sum is σ = 42608525544000. Its totient is φ = 38140702274304.

The previous prime is 40368857537513. The next prime is 40368857537573. The reversal of 40368857537557 is 75573575886304.

It is a cyclic number.

It is not a de Polignac number, because 40368857537557 - 2³⁹ = 39819101723669 is a prime.

It is a super-2 number, since 2×40368857537557² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40368857537557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40368857537597) 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, 111239919 + ... + 111602227.

It is an arithmetic number, because the mean of its divisors is an integer number (2663032846500).

Almost surely, 2^{40368857537557} is an apocalyptic number.

It is an amenable number.

40368857537557 is a deficient number, since it is larger than the sum of its proper divisors (2239668006443).

40368857537557 is a wasteful number, since it uses less digits than its factorization.

40368857537557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378180.

The product of its (nonzero) digits is 2963520000, while the sum is 73.

The spelling of 40368857537557 in words is "forty trillion, three hundred sixty-eight billion, eight hundred fifty-seven million, five hundred thirty-seven thousand, five hundred fifty-seven".