39976643699 has 2 divisors, whose sum is σ = 39976643700. Its totient is φ = 39976643698.

The previous prime is 39976643687. The next prime is 39976643711. The reversal of 39976643699 is 99634667993.

It is a balanced prime because it is at equal distance from previous prime (39976643687) and next prime (39976643711).

It is a cyclic number.

It is not a de Polignac number, because 39976643699 - 2⁴ = 39976643683 is a prime.

It is not a weakly prime, because it can be changed into another prime (39976643669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19988321849 + 19988321850.

It is an arithmetic number, because the mean of its divisors is an integer number (19988321850).

Almost surely, 2^39976643699 is an apocalyptic number.

39976643699 is a deficient number, since it is larger than the sum of its proper divisors (1).

39976643699 is an equidigital number, since it uses as much as digits as its factorization.

39976643699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 357128352, while the sum is 71.

The spelling of 39976643699 in words is "thirty-nine billion, nine hundred seventy-six million, six hundred forty-three thousand, six hundred ninety-nine".