699398811449 has 8 divisors (see below), whose sum is σ = 753310681032. Its totient is φ = 645502936320.

The previous prime is 699398811427. The next prime is 699398811467. The reversal of 699398811449 is 944118893996.

It can be written as a sum of positive squares in 4 ways, for example, as 341836670224 + 357562141225 = 584668^2 + 597965^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 699398811449 - 2³² = 695103844153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (699398811949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3907712 + ... + 4082769.

It is an arithmetic number, because the mean of its divisors is an integer number (94163835129).

Almost surely, 2^699398811449 is an apocalyptic number.

It is an amenable number.

699398811449 is a deficient number, since it is larger than the sum of its proper divisors (53911869583).

699398811449 is a wasteful number, since it uses less digits than its factorization.

699398811449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7997227.

The product of its digits is 120932352, while the sum is 71.

The spelling of 699398811449 in words is "six hundred ninety-nine billion, three hundred ninety-eight million, eight hundred eleven thousand, four hundred forty-nine".