39979929611 has 2 divisors, whose sum is σ = 39979929612. Its totient is φ = 39979929610.

The previous prime is 39979929593. The next prime is 39979929641. The reversal of 39979929611 is 11692997993.

39979929611 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 39979929611 - 2¹⁰ = 39979928587 is a prime.

It is a super-2 number, since 2×39979929611² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (39979929641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19989964805 + 19989964806.

It is an arithmetic number, because the mean of its divisors is an integer number (19989964806).

Almost surely, 2^39979929611 is an apocalyptic number.

39979929611 is a deficient number, since it is larger than the sum of its proper divisors (1).

39979929611 is an equidigital number, since it uses as much as digits as its factorization.

39979929611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14880348, while the sum is 65.

The spelling of 39979929611 in words is "thirty-nine billion, nine hundred seventy-nine million, nine hundred twenty-nine thousand, six hundred eleven".