7216637674 has 4 divisors (see below), whose sum is σ = 10824956514. Its totient is φ = 3608318836.

The previous prime is 7216637671. The next prime is 7216637677. The reversal of 7216637674 is 4767366127.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4767366127 = 30071 ⋅158537.

It is an interprime number because it is at equal distance from previous prime (7216637671) and next prime (7216637677).

It can be written as a sum of positive squares in only one way, i.e., 7158344449 + 58293225 = 84607^2 + 7635^2 .

It is a super-2 number, since 2×7216637674² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (7216637671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1804159417 + ... + 1804159420.

Almost surely, 2^7216637674 is an apocalyptic number.

7216637674 is a deficient number, since it is larger than the sum of its proper divisors (3608318840).

7216637674 is a wasteful number, since it uses less digits than its factorization.

7216637674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608318839.

The product of its digits is 1778112, while the sum is 49.

The square root of 7216637674 is about 84950.7956054562. The cubic root of 7216637674 is about 1932.4649859130.

The spelling of 7216637674 in words is "seven billion, two hundred sixteen million, six hundred thirty-seven thousand, six hundred seventy-four".