7216637671 has 2 divisors, whose sum is σ = 7216637672. Its totient is φ = 7216637670.

The previous prime is 7216637639. The next prime is 7216637677. The reversal of 7216637671 is 1767366127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7216637671 - 2⁵ = 7216637639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7216637677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3608318835 + 3608318836.

It is an arithmetic number, because the mean of its divisors is an integer number (3608318836).

Almost surely, 2^7216637671 is an apocalyptic number.

7216637671 is a deficient number, since it is larger than the sum of its proper divisors (1).

7216637671 is an equidigital number, since it uses as much as digits as its factorization.

7216637671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 46.

The square root of 7216637671 is about 84950.7955877989. The cubic root of 7216637671 is about 1932.4649856452.

The spelling of 7216637671 in words is "seven billion, two hundred sixteen million, six hundred thirty-seven thousand, six hundred seventy-one".