7216863536 has 40 divisors (see below), whose sum is σ = 14326267584. Its totient is φ = 3520258560.

The previous prime is 7216863523. The next prime is 7216863547. The reversal of 7216863536 is 6353686127.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220046 + ... + 250706.

Almost surely, 2^7216863536 is an apocalyptic number.

It is an amenable number.

7216863536 is a deficient number, since it is larger than the sum of its proper divisors (7109404048).

7216863536 is a wasteful number, since it uses less digits than its factorization.

7216863536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31029 (or 31023 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 7216863536 is about 84952.1249645940. The cubic root of 7216863536 is about 1932.4851460796.

The spelling of 7216863536 in words is "seven billion, two hundred sixteen million, eight hundred sixty-three thousand, five hundred thirty-six".