86834747805 has 32 divisors (see below), whose sum is σ = 150613881600. Its totient is φ = 42466291200.

The previous prime is 86834747803. The next prime is 86834747809. The reversal of 86834747805 is 50874743868.

It is a happy number.

It is not a de Polignac number, because 86834747805 - 2¹ = 86834747803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86834747803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1445080 + ... + 1503969.

It is an arithmetic number, because the mean of its divisors is an integer number (4706683800).

Almost surely, 2^86834747805 is an apocalyptic number.

It is an amenable number.

86834747805 is a deficient number, since it is larger than the sum of its proper divisors (63779133795).

86834747805 is a wasteful number, since it uses less digits than its factorization.

86834747805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949221.

The product of its (nonzero) digits is 36126720, while the sum is 60.

The spelling of 86834747805 in words is "eighty-six billion, eight hundred thirty-four million, seven hundred forty-seven thousand, eight hundred five".