2381380851 has 4 divisors (see below), whose sum is σ = 3175174472. Its totient is φ = 1587587232.

The previous prime is 2381380787. The next prime is 2381380853. The reversal of 2381380851 is 1580831832.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2381380851 - 2⁶ = 2381380787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2381380853) 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, 396896806 + ... + 396896811.

It is an arithmetic number, because the mean of its divisors is an integer number (793793618).

Almost surely, 2^2381380851 is an apocalyptic number.

2381380851 is a deficient number, since it is larger than the sum of its proper divisors (793793621).

2381380851 is an equidigital number, since it uses as much as digits as its factorization.

2381380851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793793620.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 2381380851 is about 48799.3939614008. The cubic root of 2381380851 is about 1335.3946101626.

The spelling of 2381380851 in words is "two billion, three hundred eighty-one million, three hundred eighty thousand, eight hundred fifty-one".