647824097085 has 32 divisors (see below), whose sum is σ = 1138882429440. Its totient is φ = 311836833600.

The previous prime is 647824097057. The next prime is 647824097131. The reversal of 647824097085 is 580790428746.

It is a happy number.

It is not a de Polignac number, because 647824097085 - 2¹³ = 647824088893 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14100111 + ... + 14145980.

It is an arithmetic number, because the mean of its divisors is an integer number (35590075920).

Almost surely, 2^647824097085 is an apocalyptic number.

It is an amenable number.

647824097085 is a deficient number, since it is larger than the sum of its proper divisors (491058332355).

647824097085 is a wasteful number, since it uses less digits than its factorization.

647824097085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28246249.

The product of its (nonzero) digits is 27095040, while the sum is 60.

The spelling of 647824097085 in words is "six hundred forty-seven billion, eight hundred twenty-four million, ninety-seven thousand, eighty-five".