81833070115 has 8 divisors (see below), whose sum is σ = 98698160880. Its totient is φ = 65134138272.

The previous prime is 81833070101. The next prime is 81833070149. The reversal of 81833070115 is 51107033818.

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

It is a cyclic number.

It is not a de Polignac number, because 81833070115 - 2⁵ = 81833070083 is a prime.

It is a super-2 number, since 2×81833070115² (a number of 23 digits) contains 22 as substring.

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, 41538645 + ... + 41540614.

It is an arithmetic number, because the mean of its divisors is an integer number (12337270110).

Almost surely, 2^81833070115 is an apocalyptic number.

81833070115 is a deficient number, since it is larger than the sum of its proper divisors (16865090765).

81833070115 is a wasteful number, since it uses less digits than its factorization.

81833070115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83079461.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 81833070115 in words is "eighty-one billion, eight hundred thirty-three million, seventy thousand, one hundred fifteen".