2489537817 has 36 divisors (see below), whose sum is σ = 4122987804. Its totient is φ = 1441889280.

The previous prime is 2489537807. The next prime is 2489537819. The reversal of 2489537817 is 7187359842.

It is a happy number.

2489537817 is a `hidden beast` number, since 24 + 8 + 9 + 537 + 81 + 7 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 170537481 + 2319000336 = 13059^2 + 48156^2 .

It is not a de Polignac number, because 2489537817 - 2¹⁵ = 2489505049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2489537819) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22284 + ... + 73997.

It is an arithmetic number, because the mean of its divisors is an integer number (114527439).

Almost surely, 2^2489537817 is an apocalyptic number.

It is an amenable number.

2489537817 is a deficient number, since it is larger than the sum of its proper divisors (1633449987).

2489537817 is a wasteful number, since it uses less digits than its factorization.

2489537817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96330 (or 96314 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 2489537817 is about 49895.2684830937. The cubic root of 2489537817 is about 1355.3129122150.

The spelling of 2489537817 in words is "two billion, four hundred eighty-nine million, five hundred thirty-seven thousand, eight hundred seventeen".