810974025601 has 4 divisors (see below), whose sum is σ = 810986429104. Its totient is φ = 810961622100.

The previous prime is 810974025581. The next prime is 810974025689. The reversal of 810974025601 is 106520479018.

810974025601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 106520479018 = 2 ⋅53260239509.

It is a cyclic number.

It is not a de Polignac number, because 810974025601 - 2¹³ = 810974017409 is a prime.

It is a super-2 number, since 2×810974025601² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (810974425601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6103155 + ... + 6234616.

It is an arithmetic number, because the mean of its divisors is an integer number (202746607276).

Almost surely, 2^810974025601 is an apocalyptic number.

It is an amenable number.

810974025601 is a deficient number, since it is larger than the sum of its proper divisors (12403503).

810974025601 is a wasteful number, since it uses less digits than its factorization.

810974025601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12403502.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 810974025601 in words is "eight hundred ten billion, nine hundred seventy-four million, twenty-five thousand, six hundred one".