40000299979 has 2 divisors, whose sum is σ = 40000299980. Its totient is φ = 40000299978.

The previous prime is 40000299943. The next prime is 40000300009. The reversal of 40000299979 is 97999200004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40000299979 - 2⁹ = 40000299467 is a prime.

It is not a weakly prime, because it can be changed into another prime (40000291979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20000149989 + 20000149990.

It is an arithmetic number, because the mean of its divisors is an integer number (20000149990).

Almost surely, 2^40000299979 is an apocalyptic number.

40000299979 is a deficient number, since it is larger than the sum of its proper divisors (1).

40000299979 is an equidigital number, since it uses as much as digits as its factorization.

40000299979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 49.

The spelling of 40000299979 in words is "forty billion, two hundred ninety-nine thousand, nine hundred seventy-nine".