40033938178943 has 16 divisors (see below), whose sum is σ = 40813679117376. Its totient is φ = 39255104977920.

The previous prime is 40033938178931. The next prime is 40033938178951. The reversal of 40033938178943 is 34987183933004.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40033938178943 is a prime.

It is a super-2 number, since 2×40033938178943² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40033938168943) 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, 1302875846 + ... + 1302906572.

It is an arithmetic number, because the mean of its divisors is an integer number (2550854944836).

Almost surely, 2^{40033938178943} is an apocalyptic number.

40033938178943 is a deficient number, since it is larger than the sum of its proper divisors (779740938433).

40033938178943 is a wasteful number, since it uses less digits than its factorization.

40033938178943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44674.

The product of its (nonzero) digits is 47029248, while the sum is 62.

The spelling of 40033938178943 in words is "forty trillion, thirty-three billion, nine hundred thirty-eight million, one hundred seventy-eight thousand, nine hundred forty-three".