2451849813 has 24 divisors (see below), whose sum is σ = 4260526400. Its totient is φ = 1327316544.

The previous prime is 2451849793. The next prime is 2451849821. The reversal of 2451849813 is 3189481542.

It is not a de Polignac number, because 2451849813 - 2²⁴ = 2435072597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2451849313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1022968 + ... + 1025361.

Almost surely, 2^2451849813 is an apocalyptic number.

It is an amenable number.

2451849813 is a deficient number, since it is larger than the sum of its proper divisors (1808676587).

2451849813 is a wasteful number, since it uses less digits than its factorization.

2451849813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048361 (or 2048358 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 2451849813 is about 49516.1570903882. The cubic root of 2451849813 is about 1348.4389478600.

The spelling of 2451849813 in words is "two billion, four hundred fifty-one million, eight hundred forty-nine thousand, eight hundred thirteen".