81064508035 has 12 divisors (see below), whose sum is σ = 113159436048. Its totient is φ = 55587091056.

The previous prime is 81064508023. The next prime is 81064508053. The reversal of 81064508035 is 53080546018.

It is not a de Polignac number, because 81064508035 - 2⁷ = 81064507907 is a prime.

It is a super-2 number, since 2×81064508035² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165437527 + ... + 165438016.

It is an arithmetic number, because the mean of its divisors is an integer number (9429953004).

Almost surely, 2^81064508035 is an apocalyptic number.

81064508035 is a deficient number, since it is larger than the sum of its proper divisors (32094928013).

81064508035 is a wasteful number, since it uses less digits than its factorization.

81064508035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330875562 (or 330875555 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 81064508035 in words is "eighty-one billion, sixty-four million, five hundred eight thousand, thirty-five".