4785116875081 has 3 divisors (see below), whose sum is σ = 4785119062573. Its totient is φ = 4785114687590.

The previous prime is 4785116875073. The next prime is 4785116875141. The reversal of 4785116875081 is 1805786115874.

The square root of 4785116875081 is 2187491.

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 is not a de Polignac number, because 4785116875081 - 2³ = 4785116875073 is a prime.

It is a super-2 number, since 2×4785116875081² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4785116875031) 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, 1093746 + ... + 3281236.

Almost surely, 2^{4785116875081} is an apocalyptic number.

4785116875081 is the 2187491-st square number.

4785116875081 is the 1093746-th centered octagonal number.

It is an amenable number.

4785116875081 is a deficient number, since it is larger than the sum of its proper divisors (2187492).

4785116875081 is an frugal number, since it uses more digits than its factorization.

4785116875081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374982 (or 2187491 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 61.

The spelling of 4785116875081 in words is "four trillion, seven hundred eighty-five billion, one hundred sixteen million, eight hundred seventy-five thousand, eighty-one".