699144264 has 128 divisors (see below), whose sum is σ = 2390304000. Its totient is φ = 184384512.

The previous prime is 699144247. The next prime is 699144293. The reversal of 699144264 is 462441996.

699144264 is a `hidden beast` number, since 69 + 91 + 442 + 64 = 666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1872 + ... + 37440.

It is an arithmetic number, because the mean of its divisors is an integer number (18674250).

Almost surely, 2^699144264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 699144264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1195152000).

699144264 is an abundant number, since it is smaller than the sum of its proper divisors (1691159736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

699144264 is a wasteful number, since it uses less digits than its factorization.

699144264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35604 (or 35594 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 699144264 is about 26441.3362748557. The cubic root of 699144264 is about 887.5420392439.

The spelling of 699144264 in words is "six hundred ninety-nine million, one hundred forty-four thousand, two hundred sixty-four".