40442934979 has 2 divisors, whose sum is σ = 40442934980. Its totient is φ = 40442934978.

The previous prime is 40442934977. The next prime is 40442935067. The reversal of 40442934979 is 97943924404.

40442934979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40442934979 - 2¹ = 40442934977 is a prime.

Together with 40442934977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40442934977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20221467489 + 20221467490.

It is an arithmetic number, because the mean of its divisors is an integer number (20221467490).

Almost surely, 2^40442934979 is an apocalyptic number.

40442934979 is a deficient number, since it is larger than the sum of its proper divisors (1).

40442934979 is an equidigital number, since it uses as much as digits as its factorization.

40442934979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 40442934979 in words is "forty billion, four hundred forty-two million, nine hundred thirty-four thousand, nine hundred seventy-nine".