81936027754 has 8 divisors (see below), whose sum is σ = 140461761888. Its totient is φ = 35115440460.

The previous prime is 81936027751. The next prime is 81936027773. The reversal of 81936027754 is 45772063918.

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

It is not an unprimeable number, because it can be changed into a prime (81936027751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2926286692 + ... + 2926286719.

It is an arithmetic number, because the mean of its divisors is an integer number (17557720236).

It is a 1-persistent number, because it is pandigital, but 2⋅81936027754 = 163872055508 is not.

Almost surely, 2^81936027754 is an apocalyptic number.

81936027754 is a deficient number, since it is larger than the sum of its proper divisors (58525734134).

81936027754 is a wasteful number, since it uses less digits than its factorization.

81936027754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5852573420.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 81936027754 in words is "eighty-one billion, nine hundred thirty-six million, twenty-seven thousand, seven hundred fifty-four".