40168850508451 has 16 divisors (see below), whose sum is σ = 47984006721024. Its totient is φ = 32877930374784.

The previous prime is 40168850508433. The next prime is 40168850508463. The reversal of 40168850508451 is 15480505886104.

It is a cyclic number.

It is not a de Polignac number, because 40168850508451 - 2²¹ = 40168848411299 is a prime.

It is a super-2 number, since 2×40168850508451² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40168850508392 and 40168850508401.

It is not an unprimeable number, because it can be changed into a prime (40168850508481) 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, 210272121 + ... + 210463066.

It is an arithmetic number, because the mean of its divisors is an integer number (2999000420064).

Almost surely, 2^{40168850508451} is an apocalyptic number.

40168850508451 is a deficient number, since it is larger than the sum of its proper divisors (7815156212573).

40168850508451 is a wasteful number, since it uses less digits than its factorization.

40168850508451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420735810.

The product of its (nonzero) digits is 6144000, while the sum is 55.

The spelling of 40168850508451 in words is "forty trillion, one hundred sixty-eight billion, eight hundred fifty million, five hundred eight thousand, four hundred fifty-one".