8993857145 has 48 divisors (see below), whose sum is σ = 13986801360. Its totient is φ = 5496454656.

The previous prime is 8993857127. The next prime is 8993857217. The reversal of 8993857145 is 5417583998.

It can be written as a sum of positive squares in 8 ways, for example, as 2414051689 + 6579805456 = 49133^2 + 81116^2 .

It is not a de Polignac number, because 8993857145 - 2¹² = 8993853049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43679 + ... + 141051.

It is an arithmetic number, because the mean of its divisors is an integer number (291391695).

Almost surely, 2^8993857145 is an apocalyptic number.

It is an amenable number.

8993857145 is a deficient number, since it is larger than the sum of its proper divisors (4992944215).

8993857145 is a wasteful number, since it uses less digits than its factorization.

8993857145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97434 (or 97427 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 59.

The square root of 8993857145 is about 94835.9485901839. The cubic root of 8993857145 is about 2079.6104689223.

The spelling of 8993857145 in words is "eight billion, nine hundred ninety-three million, eight hundred fifty-seven thousand, one hundred forty-five".