6458722085 has 8 divisors (see below), whose sum is σ = 7856637720. Its totient is φ = 5096196864.

The previous prime is 6458722073. The next prime is 6458722091. The reversal of 6458722085 is 5802278546.

It can be written as a sum of positive squares in 4 ways, for example, as 529414081 + 5929308004 = 23009^2 + 77002^2 .

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 6458722085 - 2¹⁶ = 6458656549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8847200 + ... + 8847929.

It is an arithmetic number, because the mean of its divisors is an integer number (982079715).

Almost surely, 2^6458722085 is an apocalyptic number.

It is an amenable number.

6458722085 is a deficient number, since it is larger than the sum of its proper divisors (1397915635).

6458722085 is a wasteful number, since it uses less digits than its factorization.

6458722085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17695207.

The product of its (nonzero) digits is 1075200, while the sum is 47.

The square root of 6458722085 is about 80366.1750054088. The cubic root of 6458722085 is about 1862.2966662999.

The spelling of 6458722085 in words is "six billion, four hundred fifty-eight million, seven hundred twenty-two thousand, eighty-five".