3804257847878 has 4 divisors (see below), whose sum is σ = 5706386771820. Its totient is φ = 1902128923938.

The previous prime is 3804257847869. The next prime is 3804257847913. The reversal of 3804257847878 is 8787487524083.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 951064461968 + ... + 951064461971.

It is an arithmetic number, because the mean of its divisors is an integer number (1426596692955).

Almost surely, 2^{3804257847878} is an apocalyptic number.

3804257847878 is a deficient number, since it is larger than the sum of its proper divisors (1902128923942).

3804257847878 is a wasteful number, since it uses less digits than its factorization.

3804257847878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902128923941.

The product of its (nonzero) digits is 674365440, while the sum is 71.

The spelling of 3804257847878 in words is "three trillion, eight hundred four billion, two hundred fifty-seven million, eight hundred forty-seven thousand, eight hundred seventy-eight".