2861272969 has 2 divisors, whose sum is σ = 2861272970. Its totient is φ = 2861272968.

The previous prime is 2861272963. The next prime is 2861273047. The reversal of 2861272969 is 9692721682.

2861272969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2855512969 + 5760000 = 53437^2 + 2400^2 .

It is a cyclic number.

It is not a de Polignac number, because 2861272969 - 2¹¹ = 2861270921 is a prime.

It is a super-2 number, since 2×2861272969² = 16373766006260149922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2861272963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1430636484 + 1430636485.

It is an arithmetic number, because the mean of its divisors is an integer number (1430636485).

Almost surely, 2^2861272969 is an apocalyptic number.

It is an amenable number.

2861272969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2861272969 is an equidigital number, since it uses as much as digits as its factorization.

2861272969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 52.

The square root of 2861272969 is about 53490.8680897964. The cubic root of 2861272969 is about 1419.6668148060. Note that the first 3 decimals are identical.

The spelling of 2861272969 in words is "two billion, eight hundred sixty-one million, two hundred seventy-two thousand, nine hundred sixty-nine".