814000081776 has 40 divisors (see below), whose sum is σ = 2403238337664. Its totient is φ = 232571451840.

The previous prime is 814000081721. The next prime is 814000081787. The reversal of 814000081776 is 677180000418.

It is a happy number.

It is a super-2 number, since 2×814000081776² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1211309310 + ... + 1211309981.

Almost surely, 2^814000081776 is an apocalyptic number.

It is an amenable number.

814000081776 is an abundant number, since it is smaller than the sum of its proper divisors (1589238255888).

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

814000081776 is a wasteful number, since it uses less digits than its factorization.

814000081776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422619309 (or 2422619303 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 814000081776 in words is "eight hundred fourteen billion, eighty-one thousand, seven hundred seventy-six".