2761448891 has 16 divisors (see below), whose sum is σ = 2829096960. Its totient is φ = 2694772800.

The previous prime is 2761448869. The next prime is 2761448903. The reversal of 2761448891 is 1988441672.

It is a cyclic number.

It is not a de Polignac number, because 2761448891 - 2⁶ = 2761448827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2761448791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5279756 + ... + 5280278.

It is an arithmetic number, because the mean of its divisors is an integer number (176818560).

Almost surely, 2^2761448891 is an apocalyptic number.

2761448891 is a deficient number, since it is larger than the sum of its proper divisors (67648069).

2761448891 is a wasteful number, since it uses less digits than its factorization.

2761448891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226.

The product of its digits is 774144, while the sum is 50.

The square root of 2761448891 is about 52549.4899214065. The cubic root of 2761448891 is about 1402.9612305630.

The spelling of 2761448891 in words is "two billion, seven hundred sixty-one million, four hundred forty-eight thousand, eight hundred ninety-one".