3855538870 has 16 divisors (see below), whose sum is σ = 6985932768. Its totient is φ = 1532001600.

The previous prime is 3855538867. The next prime is 3855538871. The reversal of 3855538870 is 788355583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3855538871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1275159 + ... + 1278178.

It is an arithmetic number, because the mean of its divisors is an integer number (436620798).

Almost surely, 2^3855538870 is an apocalyptic number.

3855538870 is a deficient number, since it is larger than the sum of its proper divisors (3130393898).

3855538870 is a wasteful number, since it uses less digits than its factorization.

3855538870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553495.

The product of its (nonzero) digits is 4032000, while the sum is 52.

The square root of 3855538870 is about 62092.9856747121. The cubic root of 3855538870 is about 1568.0564574610.

The spelling of 3855538870 in words is "three billion, eight hundred fifty-five million, five hundred thirty-eight thousand, eight hundred seventy".