86912346481 has 3 divisors (see below), whose sum is σ = 86912641291. Its totient is φ = 86912051672.

The previous prime is 86912346457. The next prime is 86912346487. The reversal of 86912346481 is 18464321968.

The square root of 86912346481 is 294809.

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 can be written as a sum of positive squares in only one way, i.e., 55526680881 + 31385665600 = 235641^2 + 177160^2 .

It is not a de Polignac number, because 86912346481 - 2¹⁷ = 86912215409 is a prime.

It is a super-2 number, since 2×86912346481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86912346487) 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, 147405 + ... + 442213.

Almost surely, 2^86912346481 is an apocalyptic number.

86912346481 is the 294809-th square number.

86912346481 is the 147405-th centered octagonal number.

It is an amenable number.

86912346481 is a deficient number, since it is larger than the sum of its proper divisors (294810).

86912346481 is an frugal number, since it uses more digits than its factorization.

86912346481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589618 (or 294809 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 52.

The spelling of 86912346481 in words is "eighty-six billion, nine hundred twelve million, three hundred forty-six thousand, four hundred eighty-one".