720956071628 has 48 divisors (see below), whose sum is σ = 1458912700224. Its totient is φ = 308764538880.

The previous prime is 720956071613. The next prime is 720956071669. The reversal of 720956071628 is 826170659027.

It is a self number, because there is not a number n which added to its sum of digits gives 720956071628.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5680625 + ... + 5806152.

It is an arithmetic number, because the mean of its divisors is an integer number (30394014588).

Almost surely, 2^720956071628 is an apocalyptic number.

It is an amenable number.

720956071628 is an abundant number, since it is smaller than the sum of its proper divisors (737956628596).

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

720956071628 is a wasteful number, since it uses less digits than its factorization.

720956071628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11486882 (or 11486880 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 720956071628 in words is "seven hundred twenty billion, nine hundred fifty-six million, seventy-one thousand, six hundred twenty-eight".