2389961513 has 2 divisors, whose sum is σ = 2389961514. Its totient is φ = 2389961512.

The previous prime is 2389961501. The next prime is 2389961551. The reversal of 2389961513 is 3151699832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2107452649 + 282508864 = 45907^2 + 16808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2389961513 is a prime.

It is not a weakly prime, because it can be changed into another prime (2389969513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1194980756 + 1194980757.

It is an arithmetic number, because the mean of its divisors is an integer number (1194980757).

Almost surely, 2^2389961513 is an apocalyptic number.

It is an amenable number.

2389961513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2389961513 is an equidigital number, since it uses as much as digits as its factorization.

2389961513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 47.

The square root of 2389961513 is about 48887.2326175250. The cubic root of 2389961513 is about 1336.9965987240.

The spelling of 2389961513 in words is "two billion, three hundred eighty-nine million, nine hundred sixty-one thousand, five hundred thirteen".