428171351287679 has 8 divisors (see below), whose sum is σ = 435566953885968. Its totient is φ = 420837636577600.

The previous prime is 428171351287633. The next prime is 428171351287697. The reversal of 428171351287679 is 976782153171824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428171351287679 - 2¹⁶ = 428171351222143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428171351289679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15471958097 + ... + 15471985770.

It is an arithmetic number, because the mean of its divisors is an integer number (54445869235746).

Almost surely, 2^{428171351287679} is an apocalyptic number.

428171351287679 is a deficient number, since it is larger than the sum of its proper divisors (7395602598289).

428171351287679 is a wasteful number, since it uses less digits than its factorization.

428171351287679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30943944105.

The product of its digits is 284497920, while the sum is 71.

The spelling of 428171351287679 in words is "four hundred twenty-eight trillion, one hundred seventy-one billion, three hundred fifty-one million, two hundred eighty-seven thousand, six hundred seventy-nine".