928770123909 has 8 divisors (see below), whose sum is σ = 1245518317152. Its totient is φ = 615601006640.

The previous prime is 928770123889. The next prime is 928770123923. The reversal of 928770123909 is 909321077829.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 928770123909 - 2⁹ = 928770123397 is a prime.

It is a super-2 number, since 2×928770123909² (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 (928770193909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894768387 + ... + 894769424.

It is an arithmetic number, because the mean of its divisors is an integer number (155689789644).

Almost surely, 2^928770123909 is an apocalyptic number.

It is an amenable number.

928770123909 is a deficient number, since it is larger than the sum of its proper divisors (316748193243).

928770123909 is a wasteful number, since it uses less digits than its factorization.

928770123909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789537987.

The product of its (nonzero) digits is 3429216, while the sum is 57.

The spelling of 928770123909 in words is "nine hundred twenty-eight billion, seven hundred seventy million, one hundred twenty-three thousand, nine hundred nine".