81053628002311 has 4 divisors (see below), whose sum is σ = 82938596095432. Its totient is φ = 79168659909192.

The previous prime is 81053628002299. The next prime is 81053628002327. The reversal of 81053628002311 is 11320082635018.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 81053628002311 - 2⁷ = 81053628002183 is a prime.

It is a super-2 number, since 2×81053628002311² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81053628002911) 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, 942484046496 + ... + 942484046581.

It is an arithmetic number, because the mean of its divisors is an integer number (20734649023858).

Almost surely, 2^{81053628002311} is an apocalyptic number.

81053628002311 is a deficient number, since it is larger than the sum of its proper divisors (1884968093121).

81053628002311 is a wasteful number, since it uses less digits than its factorization.

81053628002311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884968093120.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 81053628002311 in words is "eighty-one trillion, fifty-three billion, six hundred twenty-eight million, two thousand, three hundred eleven".