8465807818 has 16 divisors (see below), whose sum is σ = 13730030496. Its totient is φ = 3891726000.

The previous prime is 8465807813. The next prime is 8465807891. The reversal of 8465807818 is 8187085648.

It is a happy number.

It is a super-2 number, since 2×8465807818² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8465807813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642096 + ... + 655147.

It is an arithmetic number, because the mean of its divisors is an integer number (858126906).

Almost surely, 2^8465807818 is an apocalyptic number.

8465807818 is a deficient number, since it is larger than the sum of its proper divisors (5264222678).

8465807818 is a wasteful number, since it uses less digits than its factorization.

8465807818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297509.

The product of its (nonzero) digits is 3440640, while the sum is 55.

The square root of 8465807818 is about 92009.8245732487. The cubic root of 8465807818 is about 2038.0873892692.

The spelling of 8465807818 in words is "eight billion, four hundred sixty-five million, eight hundred seven thousand, eight hundred eighteen".