2438745851 has 4 divisors (see below), whose sum is σ = 2517415104. Its totient is φ = 2360076600.

The previous prime is 2438745847. The next prime is 2438745857. The reversal of 2438745851 is 1585478342.

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 2438745851 - 2² = 2438745847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2438745796 and 2438745805.

It is not an unprimeable number, because it can be changed into a prime (2438745857) 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, 39334580 + ... + 39334641.

It is an arithmetic number, because the mean of its divisors is an integer number (629353776).

Almost surely, 2^2438745851 is an apocalyptic number.

2438745851 is a deficient number, since it is larger than the sum of its proper divisors (78669253).

2438745851 is an equidigital number, since it uses as much as digits as its factorization.

2438745851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78669252.

The product of its digits is 1075200, while the sum is 47.

The square root of 2438745851 is about 49383.6597570492. The cubic root of 2438745851 is about 1346.0324022015.

The spelling of 2438745851 in words is "two billion, four hundred thirty-eight million, seven hundred forty-five thousand, eight hundred fifty-one".