2760249561 has 8 divisors (see below), whose sum is σ = 3681085824. Its totient is φ = 1839789840.

The previous prime is 2760249533. The next prime is 2760249581. The reversal of 2760249561 is 1659420672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2760249561 - 2⁶ = 2760249497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2760249521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76561 + ... + 106686.

It is an arithmetic number, because the mean of its divisors is an integer number (460135728).

Almost surely, 2^2760249561 is an apocalyptic number.

It is an amenable number.

2760249561 is a deficient number, since it is larger than the sum of its proper divisors (920836263).

2760249561 is a wasteful number, since it uses less digits than its factorization.

2760249561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188271.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 2760249561 is about 52538.0772487917. The cubic root of 2760249561 is about 1402.7580935854.

The spelling of 2760249561 in words is "two billion, seven hundred sixty million, two hundred forty-nine thousand, five hundred sixty-one".