2381066499 has 16 divisors (see below), whose sum is σ = 3696751872. Its totient is φ = 1334936928.

The previous prime is 2381066459. The next prime is 2381066503. The reversal of 2381066499 is 9946601832.

It is not a de Polignac number, because 2381066499 - 2¹⁹ = 2380542211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2381066449) 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, 1068549 + ... + 1070774.

It is an arithmetic number, because the mean of its divisors is an integer number (231046992).

Almost surely, 2^2381066499 is an apocalyptic number.

2381066499 is a deficient number, since it is larger than the sum of its proper divisors (1315685373).

2381066499 is a wasteful number, since it uses less digits than its factorization.

2381066499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139386.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 2381066499 is about 48796.1729954307. The cubic root of 2381066499 is about 1335.3358483958.

It can be divided in two parts, 23810 and 66499, that added together give a palindrome (90309).

The spelling of 2381066499 in words is "two billion, three hundred eighty-one million, sixty-six thousand, four hundred ninety-nine".