9618214865 has 128 divisors (see below), whose sum is σ = 15586836480. Its totient is φ = 5535129600.

The previous prime is 9618214829. The next prime is 9618214877. The reversal of 9618214865 is 5684128169.

It is not a de Polignac number, because 9618214865 - 2²⁶ = 9551106001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18460805 + ... + 18461325.

It is an arithmetic number, because the mean of its divisors is an integer number (121772160).

Almost surely, 2^9618214865 is an apocalyptic number.

9618214865 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9618214865 is a deficient number, since it is larger than the sum of its proper divisors (5968621615).

9618214865 is a wasteful number, since it uses less digits than its factorization.

9618214865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663.

The product of its digits is 829440, while the sum is 50.

The square root of 9618214865 is about 98072.4980053022. The cubic root of 9618214865 is about 2126.6604684516.

The spelling of 9618214865 in words is "nine billion, six hundred eighteen million, two hundred fourteen thousand, eight hundred sixty-five".