811618089801 has 8 divisors (see below), whose sum is σ = 1082560802400. Its totient is φ = 540877051872.

The previous prime is 811618089791. The next prime is 811618089803. The reversal of 811618089801 is 108980816118.

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

It is not a de Polignac number, because 811618089801 - 2¹⁴ = 811618073417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (811618089803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50409276 + ... + 50425373.

It is an arithmetic number, because the mean of its divisors is an integer number (135320100300).

Almost surely, 2^811618089801 is an apocalyptic number.

It is an amenable number.

811618089801 is a deficient number, since it is larger than the sum of its proper divisors (270942712599).

811618089801 is a wasteful number, since it uses less digits than its factorization.

811618089801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100837335.

The product of its (nonzero) digits is 221184, while the sum is 51.

The spelling of 811618089801 in words is "eight hundred eleven billion, six hundred eighteen million, eighty-nine thousand, eight hundred one".