81088486311 has 16 divisors (see below), whose sum is σ = 130066745600. Its totient is φ = 43897526208.

The previous prime is 81088486291. The next prime is 81088486327. The reversal of 81088486311 is 11368488018.

It is a happy number.

It is not a de Polignac number, because 81088486311 - 2¹⁸ = 81088224167 is a prime.

It is a super-2 number, since 2×81088486311² (a number of 23 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 (81088486351) 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, 101614246 + ... + 101615043.

It is an arithmetic number, because the mean of its divisors is an integer number (8129171600).

Almost surely, 2^81088486311 is an apocalyptic number.

81088486311 is a deficient number, since it is larger than the sum of its proper divisors (48978259289).

81088486311 is a wasteful number, since it uses less digits than its factorization.

81088486311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203229318.

The product of its (nonzero) digits is 294912, while the sum is 48.

The spelling of 81088486311 in words is "eighty-one billion, eighty-eight million, four hundred eighty-six thousand, three hundred eleven".