40750249979 has 2 divisors, whose sum is σ = 40750249980. Its totient is φ = 40750249978.

The previous prime is 40750249963. The next prime is 40750249999. The reversal of 40750249979 is 97994205704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40750249979 - 2⁴ = 40750249963 is a prime.

It is not a weakly prime, because it can be changed into another prime (40750249919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20375124989 + 20375124990.

It is an arithmetic number, because the mean of its divisors is an integer number (20375124990).

Almost surely, 2^40750249979 is an apocalyptic number.

40750249979 is a deficient number, since it is larger than the sum of its proper divisors (1).

40750249979 is an equidigital number, since it uses as much as digits as its factorization.

40750249979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 40750249979 in words is "forty billion, seven hundred fifty million, two hundred forty-nine thousand, nine hundred seventy-nine".