3862181382506 has 4 divisors (see below), whose sum is σ = 5793272073762. Its totient is φ = 1931090691252.

The previous prime is 3862181382487. The next prime is 3862181382557. The reversal of 3862181382506 is 6052831812683.

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

It can be written as a sum of positive squares in only one way, i.e., 2169213480625 + 1692967901881 = 1472825^2 + 1301141^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965545345625 + ... + 965545345628.

Almost surely, 2^{3862181382506} is an apocalyptic number.

3862181382506 is a deficient number, since it is larger than the sum of its proper divisors (1931090691256).

3862181382506 is a wasteful number, since it uses less digits than its factorization.

3862181382506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931090691255.

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 3862181382506 in words is "three trillion, eight hundred sixty-two billion, one hundred eighty-one million, three hundred eighty-two thousand, five hundred six".