39970980233 has 2 divisors, whose sum is σ = 39970980234. Its totient is φ = 39970980232.

The previous prime is 39970980191. The next prime is 39970980239. The reversal of 39970980233 is 33208907993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21430617664 + 18540362569 = 146392^2 + 136163^2 .

It is a cyclic number.

It is not a de Polignac number, because 39970980233 - 2³⁰ = 38897238409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (39970980239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19985490116 + 19985490117.

It is an arithmetic number, because the mean of its divisors is an integer number (19985490117).

Almost surely, 2^39970980233 is an apocalyptic number.

It is an amenable number.

39970980233 is a deficient number, since it is larger than the sum of its proper divisors (1).

39970980233 is an equidigital number, since it uses as much as digits as its factorization.

39970980233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 53.

The spelling of 39970980233 in words is "thirty-nine billion, nine hundred seventy million, nine hundred eighty thousand, two hundred thirty-three".