7218158463 has 24 divisors (see below), whose sum is σ = 10985811200. Its totient is φ = 4554337104.

The previous prime is 7218158461. The next prime is 7218158477. The reversal of 7218158463 is 3648518127.

7218158463 is a `hidden beast` number, since 7 + 2 + 1 + 8 + 1 + 584 + 63 = 666.

It is not a de Polignac number, because 7218158463 - 2¹ = 7218158461 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7218158461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157356 + ... + 197982.

Almost surely, 2^7218158463 is an apocalyptic number.

7218158463 is a deficient number, since it is larger than the sum of its proper divisors (3767652737).

7218158463 is a wasteful number, since it uses less digits than its factorization.

7218158463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41691 (or 41688 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 7218158463 is about 84959.7461330953. The cubic root of 7218158463 is about 1932.6007215658.

The spelling of 7218158463 in words is "seven billion, two hundred eighteen million, one hundred fifty-eight thousand, four hundred sixty-three".