699552867122 has 18 divisors (see below), whose sum is σ = 1056335915997. Its totient is φ = 347456296824.

The previous prime is 699552867119. The next prime is 699552867131. The reversal of 699552867122 is 221768255996.

It can be written as a sum of positive squares in 2 ways, for example, as 668206518721 + 31346348401 = 817439^2 + 177049^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=591419.

It is a super-2 number, since 2×699552867122² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 8 ways as a sum of consecutive naturals, for example, 185703683 + ... + 185707449.

Almost surely, 2^699552867122 is an apocalyptic number.

699552867122 is a deficient number, since it is larger than the sum of its proper divisors (356783048875).

699552867122 is an frugal number, since it uses more digits than its factorization.

699552867122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7850 (or 3926 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 62.

The spelling of 699552867122 in words is "six hundred ninety-nine billion, five hundred fifty-two million, eight hundred sixty-seven thousand, one hundred twenty-two".