3845520878 has 16 divisors (see below), whose sum is σ = 5856920784. Its totient is φ = 1893239040.

The previous prime is 3845520869. The next prime is 3845520881. The reversal of 3845520878 is 8780255483.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402776 + ... + 412212.

It is an arithmetic number, because the mean of its divisors is an integer number (366057549).

Almost surely, 2^3845520878 is an apocalyptic number.

3845520878 is a deficient number, since it is larger than the sum of its proper divisors (2011399906).

3845520878 is a wasteful number, since it uses less digits than its factorization.

3845520878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12547.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The square root of 3845520878 is about 62012.2639322255. The cubic root of 3845520878 is about 1566.6971660779.

The spelling of 3845520878 in words is "three billion, eight hundred forty-five million, five hundred twenty thousand, eight hundred seventy-eight".