814497477412 has 24 divisors (see below), whose sum is σ = 1460681946360. Its totient is φ = 397167210240.

The previous prime is 814497477407. The next prime is 814497477413. The reversal of 814497477412 is 214774794418.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7852795456 + 806644681956 = 88616^2 + 898134^2 .

It is a super-2 number, since 2×814497477412² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (814497477413) 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, 488587 + ... + 1366642.

It is an arithmetic number, because the mean of its divisors is an integer number (60861747765).

Almost surely, 2^814497477412 is an apocalyptic number.

814497477412 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

814497477412 is a deficient number, since it is larger than the sum of its proper divisors (646184468948).

814497477412 is a wasteful number, since it uses less digits than its factorization.

814497477412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857951 (or 1857949 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 58.

The spelling of 814497477412 in words is "eight hundred fourteen billion, four hundred ninety-seven million, four hundred seventy-seven thousand, four hundred twelve".