720109439356 has 12 divisors (see below), whose sum is σ = 1260216867168. Its totient is φ = 360047477312.

The previous prime is 720109439347. The next prime is 720109439359. The reversal of 720109439356 is 653934901027.

It is a super-2 number, since 2×720109439356² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720109439359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583716 + ... + 1987051.

It is an arithmetic number, because the mean of its divisors is an integer number (105018072264).

Almost surely, 2^720109439356 is an apocalyptic number.

It is an amenable number.

720109439356 is a deficient number, since it is larger than the sum of its proper divisors (540107427812).

720109439356 is a wasteful number, since it uses less digits than its factorization.

720109439356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3621188 (or 3621186 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 720109439356 in words is "seven hundred twenty billion, one hundred nine million, four hundred thirty-nine thousand, three hundred fifty-six".