87271511517269 has 16 divisors (see below), whose sum is σ = 88415649853440. Its totient is φ = 86133384177840.

The previous prime is 87271511517251. The next prime is 87271511517413. The reversal of 87271511517269 is 96271511517278.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87271511517269 is a prime.

It is a super-2 number, since 2×87271511517269² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87271511577269) 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, 58191314 + ... + 59672204.

It is an arithmetic number, because the mean of its divisors is an integer number (5525978115840).

Almost surely, 2^{87271511517269} is an apocalyptic number.

It is an amenable number.

87271511517269 is a deficient number, since it is larger than the sum of its proper divisors (1144138336171).

87271511517269 is a wasteful number, since it uses less digits than its factorization.

87271511517269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482920.

The product of its digits is 14817600, while the sum is 62.

Subtracting 87271511517269 from its reverse (96271511517278), we obtain a palindrome (9000000000009).

The spelling of 87271511517269 in words is "eighty-seven trillion, two hundred seventy-one billion, five hundred eleven million, five hundred seventeen thousand, two hundred sixty-nine".