71679638714 has 4 divisors (see below), whose sum is σ = 107519458074. Its totient is φ = 35839819356.

The previous prime is 71679638683. The next prime is 71679638717. The reversal of 71679638714 is 41783697617.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41783697617 = 257 ⋅162582481.

It can be written as a sum of positive squares in only one way, i.e., 58531576489 + 13148062225 = 241933^2 + 114665^2 .

It is a super-3 number, since 3×71679638714³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (71679638717) 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, 17919909677 + ... + 17919909680.

Almost surely, 2^71679638714 is an apocalyptic number.

71679638714 is a deficient number, since it is larger than the sum of its proper divisors (35839819360).

71679638714 is a wasteful number, since it uses less digits than its factorization.

71679638714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35839819359.

The product of its digits is 10668672, while the sum is 59.

The spelling of 71679638714 in words is "seventy-one billion, six hundred seventy-nine million, six hundred thirty-eight thousand, seven hundred fourteen".