720765714123 has 64 divisors (see below), whose sum is σ = 1314599731200. Its totient is φ = 380073306240.

The previous prime is 720765714113. The next prime is 720765714131. The reversal of 720765714123 is 321417567027.

720765714123 is a `hidden beast` number, since 7 + 2 + 0 + 76 + 571 + 4 + 1 + 2 + 3 = 666.

It is not a de Polignac number, because 720765714123 - 2⁶ = 720765714059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (720765714103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8757558 + ... + 8839476.

It is an arithmetic number, because the mean of its divisors is an integer number (20540620800).

Almost surely, 2^720765714123 is an apocalyptic number.

720765714123 is a deficient number, since it is larger than the sum of its proper divisors (593834017077).

720765714123 is a wasteful number, since it uses less digits than its factorization.

720765714123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85529 (or 85523 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 720765714123 in words is "seven hundred twenty billion, seven hundred sixty-five million, seven hundred fourteen thousand, one hundred twenty-three".