699576509939 has 2 divisors, whose sum is σ = 699576509940. Its totient is φ = 699576509938.

The previous prime is 699576509903. The next prime is 699576509969. The reversal of 699576509939 is 939905675996.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 699576509939 - 2²⁰ = 699575461363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 699576509939.

It is not a weakly prime, because it can be changed into another prime (699576509969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349788254969 + 349788254970.

It is an arithmetic number, because the mean of its divisors is an integer number (349788254970).

Almost surely, 2^699576509939 is an apocalyptic number.

699576509939 is a deficient number, since it is larger than the sum of its proper divisors (1).

699576509939 is an equidigital number, since it uses as much as digits as its factorization.

699576509939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1116026100, while the sum is 77.

The spelling of 699576509939 in words is "six hundred ninety-nine billion, five hundred seventy-six million, five hundred nine thousand, nine hundred thirty-nine".