81052773355 has 8 divisors (see below), whose sum is σ = 97363502064. Its totient is φ = 64775436000.

The previous prime is 81052773343. The next prime is 81052773401. The reversal of 81052773355 is 55337725018.

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

It is not a de Polignac number, because 81052773355 - 2⁵ = 81052773323 is a prime.

It is a Duffinian 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, 8342496 + ... + 8352205.

It is an arithmetic number, because the mean of its divisors is an integer number (12170437758).

Almost surely, 2^81052773355 is an apocalyptic number.

81052773355 is a deficient number, since it is larger than the sum of its proper divisors (16310728709).

81052773355 is a wasteful number, since it uses less digits than its factorization.

81052773355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16695677.

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 81052773355 in words is "eighty-one billion, fifty-two million, seven hundred seventy-three thousand, three hundred fifty-five".