9268621389 has 12 divisors (see below), whose sum is σ = 13395938556. Its totient is φ = 6175420992.

The previous prime is 9268621339. The next prime is 9268621421. The reversal of 9268621389 is 9831268629.

9268621389 is a `hidden beast` number, since 9 + 2 + 6 + 8 + 621 + 3 + 8 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2919240900 + 6349380489 = 54030^2 + 79683^2 .

It is not a de Polignac number, because 9268621389 - 2⁹ = 9268620877 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9268621339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288912 + ... + 319385.

It is an arithmetic number, because the mean of its divisors is an integer number (1116328213).

Almost surely, 2^9268621389 is an apocalyptic number.

It is an amenable number.

9268621389 is a deficient number, since it is larger than the sum of its proper divisors (4127317167).

9268621389 is a wasteful number, since it uses less digits than its factorization.

9268621389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609996 (or 609993 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 9268621389 is about 96273.6796274039. The cubic root of 9268621389 is about 2100.5759107534.

The spelling of 9268621389 in words is "nine billion, two hundred sixty-eight million, six hundred twenty-one thousand, three hundred eighty-nine".