811164745 has 8 divisors (see below), whose sum is σ = 989896320. Its totient is φ = 637932720.

The previous prime is 811164743. The next prime is 811164749. The reversal of 811164745 is 547461118.

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

It is not a de Polignac number, because 811164745 - 2¹ = 811164743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (811164743) 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, 1374561 + ... + 1375150.

It is an arithmetic number, because the mean of its divisors is an integer number (123737040).

Almost surely, 2^811164745 is an apocalyptic number.

It is an amenable number.

811164745 is a deficient number, since it is larger than the sum of its proper divisors (178731575).

811164745 is a wasteful number, since it uses less digits than its factorization.

811164745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749775.

The product of its digits is 26880, while the sum is 37.

The square root of 811164745 is about 28480.9540746092. The cubic root of 811164745 is about 932.6163444023.

The spelling of 811164745 in words is "eight hundred eleven million, one hundred sixty-four thousand, seven hundred forty-five".