811645083074 has 16 divisors (see below), whose sum is σ = 1436275170816. Its totient is φ = 336626992800.

The previous prime is 811645083059. The next prime is 811645083091. The reversal of 811645083074 is 470380546118.

It is a super-2 number, since 2×811645083074² (a number of 25 digits) contains 22 as substring.

It is a Curzon 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, 935074547 + ... + 935075414.

It is an arithmetic number, because the mean of its divisors is an integer number (89767198176).

Almost surely, 2^811645083074 is an apocalyptic number.

811645083074 is a deficient number, since it is larger than the sum of its proper divisors (624630087742).

811645083074 is a wasteful number, since it uses less digits than its factorization.

811645083074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870150001.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 811645083074 in words is "eight hundred eleven billion, six hundred forty-five million, eighty-three thousand, seventy-four".