7712187642681 has 4 divisors (see below), whose sum is σ = 10282916856912. Its totient is φ = 5141458428452.

The previous prime is 7712187642671. The next prime is 7712187642697. The reversal of 7712187642681 is 1862467812177.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7712187642681 - 2¹⁹ = 7712187118393 is a prime.

It is a super-3 number, since 3×7712187642681³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (7712187642671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285364607111 + ... + 1285364607116.

It is an arithmetic number, because the mean of its divisors is an integer number (2570729214228).

Almost surely, 2^{7712187642681} is an apocalyptic number.

It is an amenable number.

7712187642681 is a deficient number, since it is larger than the sum of its proper divisors (2570729214231).

7712187642681 is a wasteful number, since it uses less digits than its factorization.

7712187642681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570729214230.

The product of its digits is 12644352, while the sum is 60.

The spelling of 7712187642681 in words is "seven trillion, seven hundred twelve billion, one hundred eighty-seven million, six hundred forty-two thousand, six hundred eighty-one".