477814120081 has 3 divisors (see below), whose sum is σ = 477814811323. Its totient is φ = 477813428840.

The previous prime is 477814120073. The next prime is 477814120093. The reversal of 477814120081 is 180021418774.

The square root of 477814120081 is 691241.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 163182873681 + 314631246400 = 403959^2 + 560920^2 .

It is not a de Polignac number, because 477814120081 - 2³ = 477814120073 is a prime.

It is a super-3 number, since 3×477814120081³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (477814120481) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 345621 + ... + 1036861.

Almost surely, 2^477814120081 is an apocalyptic number.

477814120081 is the 691241-st square number.

477814120081 is the 345621-st centered octagonal number.

It is an amenable number.

477814120081 is a deficient number, since it is larger than the sum of its proper divisors (691242).

477814120081 is an frugal number, since it uses more digits than its factorization.

477814120081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382482 (or 691241 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 43.

The spelling of 477814120081 in words is "four hundred seventy-seven billion, eight hundred fourteen million, one hundred twenty thousand, eighty-one".