81089042110 has 16 divisors (see below), whose sum is σ = 145971186336. Its totient is φ = 32433192288.

The previous prime is 81089042107. The next prime is 81089042117. The reversal of 81089042110 is 1124098018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81089042117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159357 + ... + 433096.

It is an arithmetic number, because the mean of its divisors is an integer number (9123199146).

Almost surely, 2^81089042110 is an apocalyptic number.

81089042110 is a deficient number, since it is larger than the sum of its proper divisors (64882144226).

81089042110 is a wasteful number, since it uses less digits than its factorization.

81089042110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606147.

The product of its (nonzero) digits is 4608, while the sum is 34.

The spelling of 81089042110 in words is "eighty-one billion, eighty-nine million, forty-two thousand, one hundred ten".