378778701 has 16 divisors (see below), whose sum is σ = 590610944. Its totient is φ = 211410864.

The previous prime is 378778637. The next prime is 378778703. The reversal of 378778701 is 107877873.

It is not a de Polignac number, because 378778701 - 2⁶ = 378778637 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378778703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208831 + ... + 210636.

It is an arithmetic number, because the mean of its divisors is an integer number (36913184).

Almost surely, 2^378778701 is an apocalyptic number.

It is an amenable number.

378778701 is a deficient number, since it is larger than the sum of its proper divisors (211832243).

378778701 is a wasteful number, since it uses less digits than its factorization.

378778701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419520.

The product of its (nonzero) digits is 460992, while the sum is 48.

The square root of 378778701 is about 19462.2378209701. The cubic root of 378778701 is about 723.5388413973.

The spelling of 378778701 in words is "three hundred seventy-eight million, seven hundred seventy-eight thousand, seven hundred one".