5280681491 has 4 divisors (see below), whose sum is σ = 5591309832. Its totient is φ = 4970053152.

The previous prime is 5280681473. The next prime is 5280681493. The reversal of 5280681491 is 1941860825.

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

It is a cyclic number.

It is not a de Polignac number, because 5280681491 - 2¹⁴ = 5280665107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5280681493) 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, 155314145 + ... + 155314178.

It is an arithmetic number, because the mean of its divisors is an integer number (1397827458).

Almost surely, 2^5280681491 is an apocalyptic number.

5280681491 is a deficient number, since it is larger than the sum of its proper divisors (310628341).

5280681491 is a wasteful number, since it uses less digits than its factorization.

5280681491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310628340.

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 5280681491 is about 72668.2977026433. The cubic root of 5280681491 is about 1741.3924524505.

The spelling of 5280681491 in words is "five billion, two hundred eighty million, six hundred eighty-one thousand, four hundred ninety-one".