926928438813 has 20 divisors (see below), whose sum is σ = 1491184023868. Its totient is φ = 570417500160.

The previous prime is 926928438763. The next prime is 926928438827. The reversal of 926928438813 is 318834829629.

926928438813 is a `hidden beast` number, since 9 + 269 + 284 + 3 + 88 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 341193837924 + 585734600889 = 584118^2 + 765333^2 .

It is not a de Polignac number, because 926928438813 - 2²⁹ = 926391567901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (926928438713) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 440135908 + ... + 440138013.

Almost surely, 2^926928438813 is an apocalyptic number.

It is an amenable number.

926928438813 is a deficient number, since it is larger than the sum of its proper divisors (564255585055).

926928438813 is a wasteful number, since it uses less digits than its factorization.

926928438813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880273946 (or 880273937 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 63.

The spelling of 926928438813 in words is "nine hundred twenty-six billion, nine hundred twenty-eight million, four hundred thirty-eight thousand, eight hundred thirteen".