378885851 has 8 divisors (see below), whose sum is σ = 403192800. Its totient is φ = 354803328.

The previous prime is 378885803. The next prime is 378885869. The reversal of 378885851 is 158588873.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-378885851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378885793 and 378885802.

It is not an unprimeable number, because it can be changed into a prime (378887851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52616 + ... + 59381.

It is an arithmetic number, because the mean of its divisors is an integer number (50399100).

Almost surely, 2^378885851 is an apocalyptic number.

378885851 is a deficient number, since it is larger than the sum of its proper divisors (24306949).

378885851 is a wasteful number, since it uses less digits than its factorization.

378885851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112213.

The product of its digits is 2150400, while the sum is 53.

The square root of 378885851 is about 19464.9903930107. The cubic root of 378885851 is about 723.6070605425.

It can be divided in two parts, 37 and 8885851, that added together give a palindrome (8885888).

The spelling of 378885851 in words is "three hundred seventy-eight million, eight hundred eighty-five thousand, eight hundred fifty-one".