378969951 has 8 divisors (see below), whose sum is σ = 506350080. Its totient is φ = 252118232.

The previous prime is 378969931. The next prime is 378969971. The reversal of 378969951 is 159969873.

It is an interprime number because it is at equal distance from previous prime (378969931) and next prime (378969971).

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

It is a cyclic number.

It is not a de Polignac number, because 378969951 - 2²¹ = 376872799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 378969891 and 378969900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378969901) 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 7 ways as a sum of consecutive naturals, for example, 130425 + ... + 133298.

It is an arithmetic number, because the mean of its divisors is an integer number (63293760).

Almost surely, 2^378969951 is an apocalyptic number.

378969951 is a deficient number, since it is larger than the sum of its proper divisors (127380129).

378969951 is a wasteful number, since it uses less digits than its factorization.

378969951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264205.

The product of its digits is 3674160, while the sum is 57.

The square root of 378969951 is about 19467.1505619081. The cubic root of 378969951 is about 723.6605954454.

The spelling of 378969951 in words is "three hundred seventy-eight million, nine hundred sixty-nine thousand, nine hundred fifty-one".