85905794486 has 4 divisors (see below), whose sum is σ = 128858691732. Its totient is φ = 42952897242.

The previous prime is 85905794461. The next prime is 85905794509. The reversal of 85905794486 is 68449750958.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 21476448620 + ... + 21476448623.

It is an arithmetic number, because the mean of its divisors is an integer number (32214672933).

Almost surely, 2^85905794486 is an apocalyptic number.

85905794486 is a deficient number, since it is larger than the sum of its proper divisors (42952897246).

85905794486 is a wasteful number, since it uses less digits than its factorization.

85905794486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42952897245.

The product of its (nonzero) digits is 87091200, while the sum is 65.

The spelling of 85905794486 in words is "eighty-five billion, nine hundred five million, seven hundred ninety-four thousand, four hundred eighty-six".