85794372215 has 4 divisors (see below), whose sum is σ = 102953246664. Its totient is φ = 68635497768.

The previous prime is 85794372199. The next prime is 85794372233. The reversal of 85794372215 is 51227349758.

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 85794372215 - 2⁴ = 85794372199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8579437217 + ... + 8579437226.

It is an arithmetic number, because the mean of its divisors is an integer number (25738311666).

Almost surely, 2^85794372215 is an apocalyptic number.

85794372215 is a deficient number, since it is larger than the sum of its proper divisors (17158874449).

85794372215 is a wasteful number, since it uses less digits than its factorization.

85794372215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17158874448.

The product of its digits is 4233600, while the sum is 53.

The spelling of 85794372215 in words is "eighty-five billion, seven hundred ninety-four million, three hundred seventy-two thousand, two hundred fifteen".