7467216681 has 16 divisors (see below), whose sum is σ = 9996244544. Its totient is φ = 4958198784.

The previous prime is 7467216661. The next prime is 7467216683. The reversal of 7467216681 is 1866127647.

It is not a de Polignac number, because 7467216681 - 2²⁶ = 7400107817 is a prime.

It is a super-2 number, since 2×7467216681² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7467216681.

It is not an unprimeable number, because it can be changed into a prime (7467216683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1132065 + ... + 1138641.

It is an arithmetic number, because the mean of its divisors is an integer number (624765284).

Almost surely, 2^7467216681 is an apocalyptic number.

It is an amenable number.

7467216681 is a deficient number, since it is larger than the sum of its proper divisors (2529027863).

7467216681 is a wasteful number, since it uses less digits than its factorization.

7467216681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8040.

The product of its digits is 677376, while the sum is 48.

The square root of 7467216681 is about 86413.0585096952. The cubic root of 7467216681 is about 1954.5776025924.

The spelling of 7467216681 in words is "seven billion, four hundred sixty-seven million, two hundred sixteen thousand, six hundred eighty-one".