706722388857 has 16 divisors (see below), whose sum is σ = 1102101192000. Its totient is φ = 446350982112.

The previous prime is 706722388849. The next prime is 706722388861. The reversal of 706722388857 is 758883227607.

It is not a de Polignac number, because 706722388857 - 2³ = 706722388849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 706722388794 and 706722388803.

It is not an unprimeable number, because it can be changed into a prime (706722388847) 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, 688812732 + ... + 688813757.

It is an arithmetic number, because the mean of its divisors is an integer number (68881324500).

Almost surely, 2^706722388857 is an apocalyptic number.

It is an amenable number.

706722388857 is a deficient number, since it is larger than the sum of its proper divisors (395378803143).

706722388857 is a wasteful number, since it uses less digits than its factorization.

706722388857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377626517 (or 1377626511 counting only the distinct ones).

The product of its (nonzero) digits is 63221760, while the sum is 63.

The spelling of 706722388857 in words is "seven hundred six billion, seven hundred twenty-two million, three hundred eighty-eight thousand, eight hundred fifty-seven".