40216989031 has 2 divisors, whose sum is σ = 40216989032. Its totient is φ = 40216989030.

The previous prime is 40216989019. The next prime is 40216989041. The reversal of 40216989031 is 13098961204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40216989031 - 2¹¹ = 40216986983 is a prime.

It is a super-2 number, since 2×40216989031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40216989041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20108494515 + 20108494516.

It is an arithmetic number, because the mean of its divisors is an integer number (20108494516).

Almost surely, 2^40216989031 is an apocalyptic number.

40216989031 is a deficient number, since it is larger than the sum of its proper divisors (1).

40216989031 is an equidigital number, since it uses as much as digits as its factorization.

40216989031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 40216989031 in words is "forty billion, two hundred sixteen million, nine hundred eighty-nine thousand, thirty-one".