85938737215 has 4 divisors (see below), whose sum is σ = 103126484664. Its totient is φ = 68750989768.

The previous prime is 85938737207. The next prime is 85938737231. The reversal of 85938737215 is 51273783958.

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 85938737215 - 2³ = 85938737207 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85938737215.

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, 8593873717 + ... + 8593873726.

It is an arithmetic number, because the mean of its divisors is an integer number (25781621166).

Almost surely, 2^85938737215 is an apocalyptic number.

85938737215 is a deficient number, since it is larger than the sum of its proper divisors (17187747449).

85938737215 is a wasteful number, since it uses less digits than its factorization.

85938737215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17187747448.

The product of its digits is 12700800, while the sum is 58.

The spelling of 85938737215 in words is "eighty-five billion, nine hundred thirty-eight million, seven hundred thirty-seven thousand, two hundred fifteen".