39927996293 has 2 divisors, whose sum is σ = 39927996294. Its totient is φ = 39927996292.

The previous prime is 39927996289. The next prime is 39927996301. The reversal of 39927996293 is 39269972993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21399886369 + 18528109924 = 146287^2 + 136118^2 .

It is a cyclic number.

It is not a de Polignac number, because 39927996293 - 2² = 39927996289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39927996593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19963998146 + 19963998147.

It is an arithmetic number, because the mean of its divisors is an integer number (19963998147).

Almost surely, 2^39927996293 is an apocalyptic number.

It is an amenable number.

39927996293 is a deficient number, since it is larger than the sum of its proper divisors (1).

39927996293 is an equidigital number, since it uses as much as digits as its factorization.

39927996293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89282088, while the sum is 68.

The spelling of 39927996293 in words is "thirty-nine billion, nine hundred twenty-seven million, nine hundred ninety-six thousand, two hundred ninety-three".