39995226659 has 2 divisors, whose sum is σ = 39995226660. Its totient is φ = 39995226658.

The previous prime is 39995226637. The next prime is 39995226671. The reversal of 39995226659 is 95662259993.

It is a strong prime.

It is an emirp because it is prime and its reverse (95662259993) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39995226659 - 2³² = 35700259363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39995226595 and 39995226604.

It is not a weakly prime, because it can be changed into another prime (39995226629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19997613329 + 19997613330.

It is an arithmetic number, because the mean of its divisors is an integer number (19997613330).

Almost surely, 2^39995226659 is an apocalyptic number.

39995226659 is a deficient number, since it is larger than the sum of its proper divisors (1).

39995226659 is an equidigital number, since it uses as much as digits as its factorization.

39995226659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70858800, while the sum is 65.

The spelling of 39995226659 in words is "thirty-nine billion, nine hundred ninety-five million, two hundred twenty-six thousand, six hundred fifty-nine".