39675908563 has 2 divisors, whose sum is σ = 39675908564. Its totient is φ = 39675908562.

The previous prime is 39675908557. The next prime is 39675908627. The reversal of 39675908563 is 36580957693.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39675908563 is a prime.

It is not a weakly prime, because it can be changed into another prime (39675908663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19837954281 + 19837954282.

It is an arithmetic number, because the mean of its divisors is an integer number (19837954282).

Almost surely, 2^39675908563 is an apocalyptic number.

39675908563 is a deficient number, since it is larger than the sum of its proper divisors (1).

39675908563 is an equidigital number, since it uses as much as digits as its factorization.

39675908563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36741600, while the sum is 61.

The spelling of 39675908563 in words is "thirty-nine billion, six hundred seventy-five million, nine hundred eight thousand, five hundred sixty-three".