71428614679 has 4 divisors (see below), whose sum is σ = 71447783584. Its totient is φ = 71409445776.

The previous prime is 71428614617. The next prime is 71428614701. The reversal of 71428614679 is 97641682417.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71428614679 - 2¹⁵ = 71428581911 is a prime.

It is a super-2 number, since 2×71428614679² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71428614479) 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, 9578862 + ... + 9586315.

It is an arithmetic number, because the mean of its divisors is an integer number (17861945896).

Almost surely, 2^71428614679 is an apocalyptic number.

71428614679 is a deficient number, since it is larger than the sum of its proper divisors (19168905).

71428614679 is a wasteful number, since it uses less digits than its factorization.

71428614679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19168904.

The product of its digits is 4064256, while the sum is 55.

The spelling of 71428614679 in words is "seventy-one billion, four hundred twenty-eight million, six hundred fourteen thousand, six hundred seventy-nine".