8049281261 has 16 divisors (see below), whose sum is σ = 9752037120. Its totient is φ = 6485717760.

The previous prime is 8049281237. The next prime is 8049281269. The reversal of 8049281261 is 1621829408.

It is a cyclic number.

It is not a de Polignac number, because 8049281261 - 2¹⁸ = 8049019117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8049281269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59531 + ... + 140151.

It is an arithmetic number, because the mean of its divisors is an integer number (609502320).

Almost surely, 2^8049281261 is an apocalyptic number.

It is an amenable number.

8049281261 is a deficient number, since it is larger than the sum of its proper divisors (1702755859).

8049281261 is a wasteful number, since it uses less digits than its factorization.

8049281261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81484.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 8049281261 is about 89717.7867593712. The cubic root of 8049281261 is about 2004.0983677045.

The spelling of 8049281261 in words is "eight billion, forty-nine million, two hundred eighty-one thousand, two hundred sixty-one".