40299992939 has 2 divisors, whose sum is σ = 40299992940. Its totient is φ = 40299992938.

The previous prime is 40299992917. The next prime is 40299992983. The reversal of 40299992939 is 93929999204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40299992939 is a prime.

It is not a weakly prime, because it can be changed into another prime (40299992989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20149996469 + 20149996470.

It is an arithmetic number, because the mean of its divisors is an integer number (20149996470).

Almost surely, 2^40299992939 is an apocalyptic number.

40299992939 is a deficient number, since it is larger than the sum of its proper divisors (1).

40299992939 is an equidigital number, since it uses as much as digits as its factorization.

40299992939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25509168, while the sum is 65.

The spelling of 40299992939 in words is "forty billion, two hundred ninety-nine million, nine hundred ninety-two thousand, nine hundred thirty-nine".