2461039561 has 4 divisors (see below), whose sum is σ = 2605806612. Its totient is φ = 2316272512.

The previous prime is 2461039547. The next prime is 2461039601. The reversal of 2461039561 is 1659301642.

2461039561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2285318025 + 175721536 = 47805^2 + 13256^2 .

It is a cyclic number.

It is not a de Polignac number, because 2461039561 - 2²³ = 2452650953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2461039561.

It is not an unprimeable number, because it can be changed into a prime (2461039661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72383500 + ... + 72383533.

It is an arithmetic number, because the mean of its divisors is an integer number (651451653).

Almost surely, 2^2461039561 is an apocalyptic number.

It is an amenable number.

2461039561 is a deficient number, since it is larger than the sum of its proper divisors (144767051).

2461039561 is a wasteful number, since it uses less digits than its factorization.

2461039561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144767050.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 2461039561 is about 49608.8657499846. The cubic root of 2461039561 is about 1350.1215365661.

The spelling of 2461039561 in words is "two billion, four hundred sixty-one million, thirty-nine thousand, five hundred sixty-one".