81089151755 has 16 divisors (see below), whose sum is σ = 97990257600. Its totient is φ = 64416074112.

The previous prime is 81089151733. The next prime is 81089151757. The reversal of 81089151755 is 55715198018.

It is a cyclic number.

It is not a de Polignac number, because 81089151755 - 2²⁸ = 80820716299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (81089151757) 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, 2694602 + ... + 2724528.

It is an arithmetic number, because the mean of its divisors is an integer number (6124391100).

Almost surely, 2^81089151755 is an apocalyptic number.

81089151755 is a deficient number, since it is larger than the sum of its proper divisors (16901105845).

81089151755 is a wasteful number, since it uses less digits than its factorization.

81089151755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33718.

The product of its (nonzero) digits is 504000, while the sum is 50.

The spelling of 81089151755 in words is "eighty-one billion, eighty-nine million, one hundred fifty-one thousand, seven hundred fifty-five".