802134774681 has 4 divisors (see below), whose sum is σ = 1069513032912. Its totient is φ = 534756516452.

The previous prime is 802134774673. The next prime is 802134774691. The reversal of 802134774681 is 186477431208.

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.

It is a cyclic number.

It is not a de Polignac number, because 802134774681 - 2³ = 802134774673 is a prime.

It is a super-2 number, since 2×802134774681² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (802134774601) 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, 133689129111 + ... + 133689129116.

It is an arithmetic number, because the mean of its divisors is an integer number (267378258228).

Almost surely, 2^802134774681 is an apocalyptic number.

It is an amenable number.

802134774681 is a deficient number, since it is larger than the sum of its proper divisors (267378258231).

802134774681 is a wasteful number, since it uses less digits than its factorization.

802134774681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267378258230.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 802134774681 in words is "eight hundred two billion, one hundred thirty-four million, seven hundred seventy-four thousand, six hundred eighty-one".