2770864321 has 3 divisors (see below), whose sum is σ = 2770916961. Its totient is φ = 2770811682.

The previous prime is 2770864309. The next prime is 2770864381. The reversal of 2770864321 is 1234680772.

The square root of 2770864321 is 52639.

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 2770864321 - 2¹¹ = 2770862273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2770864381) 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, 26320 + ... + 78958.

It is an arithmetic number, because the mean of its divisors is an integer number (923638987).

Almost surely, 2^2770864321 is an apocalyptic number.

2770864321 is the 52639-th square number.

2770864321 is the 26320-th centered octagonal number.

It is an amenable number.

2770864321 is a deficient number, since it is larger than the sum of its proper divisors (52640).

2770864321 is an frugal number, since it uses more digits than its factorization.

2770864321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105278 (or 52639 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The cubic root of 2770864321 is about 1404.5539329383.

Multiplying 2770864321 by its product of nonzero digits (112896), we get a square (312819498383616 = 17686704²).

It can be divided in two parts, 27708 and 64321, that added together give a palindrome (92029).

The spelling of 2770864321 in words is "two billion, seven hundred seventy million, eight hundred sixty-four thousand, three hundred twenty-one".