378890811 has 16 divisors (see below), whose sum is σ = 604498720. Its totient is φ = 233163360.

The previous prime is 378890797. The next prime is 378890819. The reversal of 378890811 is 118098873.

It is not a de Polignac number, because 378890811 - 2⁵ = 378890779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378890819) 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, 539380 + ... + 540081.

It is an arithmetic number, because the mean of its divisors is an integer number (37781170).

Almost surely, 2^378890811 is an apocalyptic number.

378890811 is a deficient number, since it is larger than the sum of its proper divisors (225607909).

378890811 is a wasteful number, since it uses less digits than its factorization.

378890811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079483 (or 1079477 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 378890811 is about 19465.1178008251. The cubic root of 378890811 is about 723.6102181121.

The spelling of 378890811 in words is "three hundred seventy-eight million, eight hundred ninety thousand, eight hundred eleven".