86702747267761 has 3 divisors (see below), whose sum is σ = 86702756579193. Its totient is φ = 86702737956330.

The previous prime is 86702747267753. The next prime is 86702747267767. The reversal of 86702747267761 is 16776274720768.

The square root of 86702747267761 is 9311431.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 86702747267761 - 2³ = 86702747267753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86702747267767) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4655716 + ... + 13967146.

It is an arithmetic number, because the mean of its divisors is an integer number (28900918859731).

Almost surely, 2^{86702747267761} is an apocalyptic number.

86702747267761 is the 9311431-st square number.

86702747267761 is the 4655716-th centered octagonal number.

It is an amenable number.

86702747267761 is a deficient number, since it is larger than the sum of its proper divisors (9311432).

86702747267761 is an frugal number, since it uses more digits than its factorization.

86702747267761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18622862 (or 9311431 counting only the distinct ones).

The product of its (nonzero) digits is 464679936, while the sum is 70.

The spelling of 86702747267761 in words is "eighty-six trillion, seven hundred two billion, seven hundred forty-seven million, two hundred sixty-seven thousand, seven hundred sixty-one".