40999999999939 has 2 divisors, whose sum is σ = 40999999999940. Its totient is φ = 40999999999938.

The previous prime is 40999999999853. The next prime is 40999999999961. The reversal of 40999999999939 is 93999999999904.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40999999999939 is a prime.

It is not a weakly prime, because it can be changed into another prime (40999999999339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20499999999969 + 20499999999970.

It is an arithmetic number, because the mean of its divisors is an integer number (20499999999970).

Almost surely, 2^{40999999999939} is an apocalyptic number.

40999999999939 is a deficient number, since it is larger than the sum of its proper divisors (1).

40999999999939 is an equidigital number, since it uses as much as digits as its factorization.

40999999999939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376572715308, while the sum is 106.

The spelling of 40999999999939 in words is "forty trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred thirty-nine".