7631726761 has 4 divisors (see below), whose sum is σ = 7963540992. Its totient is φ = 7299912532.

The previous prime is 7631726749. The next prime is 7631726779. The reversal of 7631726761 is 1676271367.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1676271367 = 409 ⋅4098463.

It is a cyclic number.

It is not a de Polignac number, because 7631726761 - 2⁷ = 7631726633 is a prime.

It is a super-3 number, since 3×7631726761³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7631726701) 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 in 3 ways as a sum of consecutive naturals, for example, 165907081 + ... + 165907126.

It is an arithmetic number, because the mean of its divisors is an integer number (1990885248).

Almost surely, 2^7631726761 is an apocalyptic number.

It is an amenable number.

7631726761 is a deficient number, since it is larger than the sum of its proper divisors (331814231).

7631726761 is a wasteful number, since it uses less digits than its factorization.

7631726761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331814230.

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

The square root of 7631726761 is about 87359.7548130717. The cubic root of 7631726761 is about 1968.8272165283.

The spelling of 7631726761 in words is "seven billion, six hundred thirty-one million, seven hundred twenty-six thousand, seven hundred sixty-one".