40348625879 has 2 divisors, whose sum is σ = 40348625880. Its totient is φ = 40348625878.

The previous prime is 40348625813. The next prime is 40348625881. The reversal of 40348625879 is 97852684304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40348625879 - 2³² = 36053658583 is a prime.

It is a super-2 number, since 2×40348625879² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 40348625881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40348625179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20174312939 + 20174312940.

It is an arithmetic number, because the mean of its divisors is an integer number (20174312940).

Almost surely, 2^40348625879 is an apocalyptic number.

40348625879 is a deficient number, since it is larger than the sum of its proper divisors (1).

40348625879 is an equidigital number, since it uses as much as digits as its factorization.

40348625879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 40348625879 in words is "forty billion, three hundred forty-eight million, six hundred twenty-five thousand, eight hundred seventy-nine".