699344948761 has 2 divisors, whose sum is σ = 699344948762. Its totient is φ = 699344948760.

The previous prime is 699344948699. The next prime is 699344948773. The reversal of 699344948761 is 167849443996.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 681293414025 + 18051534736 = 825405^2 + 134356^2 .

It is a cyclic number.

It is not a de Polignac number, because 699344948761 - 2⁷ = 699344948633 is a prime.

It is not a weakly prime, because it can be changed into another prime (699344948161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349672474380 + 349672474381.

It is an arithmetic number, because the mean of its divisors is an integer number (349672474381).

Almost surely, 2^699344948761 is an apocalyptic number.

It is an amenable number.

699344948761 is a deficient number, since it is larger than the sum of its proper divisors (1).

699344948761 is an equidigital number, since it uses as much as digits as its factorization.

699344948761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282175488, while the sum is 70.

The spelling of 699344948761 in words is "six hundred ninety-nine billion, three hundred forty-four million, nine hundred forty-eight thousand, seven hundred sixty-one".