7728342871 has 8 divisors (see below), whose sum is σ = 7793145360. Its totient is φ = 7663672128.

The previous prime is 7728342863. The next prime is 7728342913. The reversal of 7728342871 is 1782438277.

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 7728342871 - 2³ = 7728342863 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 (7728342841) 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, 86685 + ... + 151561.

It is an arithmetic number, because the mean of its divisors is an integer number (974143170).

Almost surely, 2^7728342871 is an apocalyptic number.

7728342871 is a deficient number, since it is larger than the sum of its proper divisors (64802489).

7728342871 is a wasteful number, since it uses less digits than its factorization.

7728342871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65873.

The product of its digits is 1053696, while the sum is 49.

The square root of 7728342871 is about 87910.9940280509. The cubic root of 7728342871 is about 1977.1007180139.

The spelling of 7728342871 in words is "seven billion, seven hundred twenty-eight million, three hundred forty-two thousand, eight hundred seventy-one".