86513531469 has 16 divisors (see below), whose sum is σ = 117024230400. Its totient is φ = 56844195840.

The previous prime is 86513531399. The next prime is 86513531483. The reversal of 86513531469 is 96413531568.

It is not a de Polignac number, because 86513531469 - 2⁷ = 86513531341 is a prime.

It is a super-2 number, since 2×86513531469² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86513531569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546669 + ... + 686930.

It is an arithmetic number, because the mean of its divisors is an integer number (7314014400).

Almost surely, 2^86513531469 is an apocalyptic number.

It is an amenable number.

86513531469 is a deficient number, since it is larger than the sum of its proper divisors (30510698931).

86513531469 is a wasteful number, since it uses less digits than its factorization.

86513531469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233940.

The product of its digits is 2332800, while the sum is 51.

Subtracting 86513531469 from its reverse (96413531568), we obtain a palindrome (9900000099).

The spelling of 86513531469 in words is "eighty-six billion, five hundred thirteen million, five hundred thirty-one thousand, four hundred sixty-nine".