378851061 has 4 divisors (see below), whose sum is σ = 505134752. Its totient is φ = 252567372.

The previous prime is 378851059. The next prime is 378851071. The reversal of 378851061 is 160158873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 378851061 - 2¹ = 378851059 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 (378851021) 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 3 ways as a sum of consecutive naturals, for example, 63141841 + ... + 63141846.

It is an arithmetic number, because the mean of its divisors is an integer number (126283688).

Almost surely, 2^378851061 is an apocalyptic number.

It is an amenable number.

378851061 is a deficient number, since it is larger than the sum of its proper divisors (126283691).

378851061 is a wasteful number, since it uses less digits than its factorization.

378851061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126283690.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 378851061 is about 19464.0967167757. The cubic root of 378851061 is about 723.5849122181.

The spelling of 378851061 in words is "three hundred seventy-eight million, eight hundred fifty-one thousand, sixty-one".