81067141048 has 32 divisors (see below), whose sum is σ = 152326965600. Its totient is φ = 40446701568.

The previous prime is 81067141039. The next prime is 81067141073. The reversal of 81067141048 is 84014176018.

It is a self number, because there is not a number n which added to its sum of digits gives 81067141048.

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, 10080213 + ... + 10088251.

It is an arithmetic number, because the mean of its divisors is an integer number (4760217675).

Almost surely, 2^81067141048 is an apocalyptic number.

It is an amenable number.

81067141048 is a deficient number, since it is larger than the sum of its proper divisors (71259824552).

81067141048 is a wasteful number, since it uses less digits than its factorization.

81067141048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10591 (or 10587 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 81067141048 in words is "eighty-one billion, sixty-seven million, one hundred forty-one thousand, forty-eight".