81737114551741 has 8 divisors (see below), whose sum is σ = 89168507686368. Its totient is φ = 74305845810000.

The previous prime is 81737114551717. The next prime is 81737114551751. The reversal of 81737114551741 is 14715541173718.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-81737114551741 is a prime.

It is a super-2 number, since 2×81737114551741² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81737114551711) 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, 29721655 + ... + 32355076.

It is an arithmetic number, because the mean of its divisors is an integer number (11146063460796).

Almost surely, 2^{81737114551741} is an apocalyptic number.

It is an amenable number.

81737114551741 is a deficient number, since it is larger than the sum of its proper divisors (7431393134627).

81737114551741 is a wasteful number, since it uses less digits than its factorization.

81737114551741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62196443.

The product of its digits is 3292800, while the sum is 55.

The spelling of 81737114551741 in words is "eighty-one trillion, seven hundred thirty-seven billion, one hundred fourteen million, five hundred fifty-one thousand, seven hundred forty-one".