81082035755 has 32 divisors (see below), whose sum is σ = 117863662464. Its totient is φ = 52273299456.

The previous prime is 81082035737. The next prime is 81082035791. The reversal of 81082035755 is 55753028018.

It is a de Polignac number, because none of the positive numbers 2^k-81082035755 is a prime.

It is a super-3 number, since 3×81082035755³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 495539 + ... + 638531.

It is an arithmetic number, because the mean of its divisors is an integer number (3683239452).

Almost surely, 2^81082035755 is an apocalyptic number.

81082035755 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

81082035755 is a deficient number, since it is larger than the sum of its proper divisors (36781626709).

81082035755 is a wasteful number, since it uses less digits than its factorization.

81082035755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143975.

The product of its (nonzero) digits is 336000, while the sum is 44.

The spelling of 81082035755 in words is "eighty-one billion, eighty-two million, thirty-five thousand, seven hundred fifty-five".