378361851 has 16 divisors (see below), whose sum is σ = 595150848. Its totient is φ = 209232000.

The previous prime is 378361849. The next prime is 378361853. The reversal of 378361851 is 158163873.

It is an interprime number because it is at equal distance from previous prime (378361849) and next prime (378361853).

It is not a de Polignac number, because 378361851 - 2¹ = 378361849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378361853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289950 + ... + 291251.

It is an arithmetic number, because the mean of its divisors is an integer number (37196928).

Almost surely, 2^378361851 is an apocalyptic number.

378361851 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

378361851 is a deficient number, since it is larger than the sum of its proper divisors (216788997).

378361851 is a wasteful number, since it uses less digits than its factorization.

378361851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581242.

The product of its digits is 120960, while the sum is 42.

The square root of 378361851 is about 19451.5256728103. The cubic root of 378361851 is about 723.2733232345.

The spelling of 378361851 in words is "three hundred seventy-eight million, three hundred sixty-one thousand, eight hundred fifty-one".