8965388505 has 16 divisors (see below), whose sum is σ = 14346693504. Its totient is φ = 4780849920.

The previous prime is 8965388503. The next prime is 8965388513. The reversal of 8965388505 is 5058835698.

It is not a de Polignac number, because 8965388505 - 2¹ = 8965388503 is a prime.

It is a super-2 number, since 2×8965388505² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8965388503) 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, 74497 + ... + 153233.

It is an arithmetic number, because the mean of its divisors is an integer number (896668344).

Almost surely, 2^8965388505 is an apocalyptic number.

It is an amenable number.

8965388505 is a deficient number, since it is larger than the sum of its proper divisors (5381304999).

8965388505 is a wasteful number, since it uses less digits than its factorization.

8965388505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86336.

The product of its (nonzero) digits is 10368000, while the sum is 57.

The square root of 8965388505 is about 94685.7354885096. The cubic root of 8965388505 is about 2077.4139230817.

The spelling of 8965388505 in words is "eight billion, nine hundred sixty-five million, three hundred eighty-eight thousand, five hundred five".