40260992879 has 2 divisors, whose sum is σ = 40260992880. Its totient is φ = 40260992878.

The previous prime is 40260992869. The next prime is 40260992927. The reversal of 40260992879 is 97829906204.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40260992879 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40260992819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20130496439 + 20130496440.

It is an arithmetic number, because the mean of its divisors is an integer number (20130496440).

Almost surely, 2^40260992879 is an apocalyptic number.

40260992879 is a deficient number, since it is larger than the sum of its proper divisors (1).

40260992879 is an equidigital number, since it uses as much as digits as its factorization.

40260992879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 40260992879 in words is "forty billion, two hundred sixty million, nine hundred ninety-two thousand, eight hundred seventy-nine".