81041151741 has 32 divisors (see below), whose sum is σ = 126047892096. Its totient is φ = 45768960000.

The previous prime is 81041151739. The next prime is 81041151767. The reversal of 81041151741 is 14715114018.

It is not a de Polignac number, because 81041151741 - 2¹ = 81041151739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81041151701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 658480 + ... + 771801.

It is an arithmetic number, because the mean of its divisors is an integer number (3938996628).

Almost surely, 2^81041151741 is an apocalyptic number.

It is an amenable number.

81041151741 is a deficient number, since it is larger than the sum of its proper divisors (45006740355).

81041151741 is a wasteful number, since it uses less digits than its factorization.

81041151741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430413.

The product of its (nonzero) digits is 4480, while the sum is 33.

Adding to 81041151741 its reverse (14715114018), we get a palindrome (95756265759).

The spelling of 81041151741 in words is "eighty-one billion, forty-one million, one hundred fifty-one thousand, seven hundred forty-one".