40033938178931 has 2 divisors, whose sum is σ = 40033938178932. Its totient is φ = 40033938178930.

The previous prime is 40033938178783. The next prime is 40033938178951. The reversal of 40033938178931 is 13987183933004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40033938178931 - 2¹⁸ = 40033937916787 is a prime.

It is a super-2 number, since 2×40033938178931² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40033938178951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20016969089465 + 20016969089466.

It is an arithmetic number, because the mean of its divisors is an integer number (20016969089466).

Almost surely, 2^{40033938178931} is an apocalyptic number.

40033938178931 is a deficient number, since it is larger than the sum of its proper divisors (1).

40033938178931 is an equidigital number, since it uses as much as digits as its factorization.

40033938178931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11757312, while the sum is 59.

The spelling of 40033938178931 in words is "forty trillion, thirty-three billion, nine hundred thirty-eight million, one hundred seventy-eight thousand, nine hundred thirty-one".