699609724320 has 96 divisors (see below), whose sum is σ = 2373291470592. Its totient is φ = 172211622912.

The previous prime is 699609724259. The next prime is 699609724321. The reversal of 699609724320 is 23427906996.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (699609724321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56052232 + ... + 56064711.

It is an arithmetic number, because the mean of its divisors is an integer number (24721786152).

Almost surely, 2^699609724320 is an apocalyptic number.

699609724320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

699609724320 is an abundant number, since it is smaller than the sum of its proper divisors (1673681746272).

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

699609724320 is a wasteful number, since it uses less digits than its factorization.

699609724320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112116974 (or 112116966 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 57.

The spelling of 699609724320 in words is "six hundred ninety-nine billion, six hundred nine million, seven hundred twenty-four thousand, three hundred twenty".