81054838030 has 16 divisors (see below), whose sum is σ = 146552966784. Its totient is φ = 32276544480.

The previous prime is 81054837991. The next prime is 81054838043. The reversal of 81054838030 is 3083845018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18171501 + ... + 18175960.

It is an arithmetic number, because the mean of its divisors is an integer number (9159560424).

Almost surely, 2^81054838030 is an apocalyptic number.

81054838030 is a deficient number, since it is larger than the sum of its proper divisors (65498128754).

81054838030 is a wasteful number, since it uses less digits than its factorization.

81054838030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36347691.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 81054838030 in words is "eighty-one billion, fifty-four million, eight hundred thirty-eight thousand, thirty".