2970827984881 has 3 divisors (see below), whose sum is σ = 2970829708491. Its totient is φ = 2970826261272.

The previous prime is 2970827984827. The next prime is 2970827984909. The reversal of 2970827984881 is 1884897280792.

The square root of 2970827984881 is 1723609.

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., 2287229744881 + 683598240000 = 1512359^2 + 826800^2 .

It is not a de Polignac number, because 2970827984881 - 2⁷ = 2970827984753 is a prime.

It is a super-2 number, since 2×2970827984881² (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 (2970827984801) 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, 861805 + ... + 2585413.

It is an arithmetic number, because the mean of its divisors is an integer number (990276569497).

Almost surely, 2^{2970827984881} is an apocalyptic number.

2970827984881 is the 1723609-th square number.

2970827984881 is the 861805-th centered octagonal number.

It is an amenable number.

2970827984881 is a deficient number, since it is larger than the sum of its proper divisors (1723610).

2970827984881 is an frugal number, since it uses more digits than its factorization.

2970827984881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3447218 (or 1723609 counting only the distinct ones).

The product of its (nonzero) digits is 260112384, while the sum is 73.

The spelling of 2970827984881 in words is "two trillion, nine hundred seventy billion, eight hundred twenty-seven million, nine hundred eighty-four thousand, eight hundred eighty-one".