814511664084 has 24 divisors (see below), whose sum is σ = 1911512927520. Its totient is φ = 269934500704.

The previous prime is 814511664077. The next prime is 814511664119. The reversal of 814511664084 is 480466115418.

It is a super-4 number, since 4×814511664084⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196171254 + ... + 196175405.

It is an arithmetic number, because the mean of its divisors is an integer number (79646371980).

Almost surely, 2^814511664084 is an apocalyptic number.

It is an amenable number.

814511664084 is an abundant number, since it is smaller than the sum of its proper divisors (1097001263436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

814511664084 is a wasteful number, since it uses less digits than its factorization.

814511664084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392346839 (or 392346837 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 814511664084 in words is "eight hundred fourteen billion, five hundred eleven million, six hundred sixty-four thousand, eighty-four".