3867118634 has 4 divisors (see below), whose sum is σ = 5800677954. Its totient is φ = 1933559316.

The previous prime is 3867118579. The next prime is 3867118637. The reversal of 3867118634 is 4368117683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4368117683 = 17 ⋅256948099.

It can be written as a sum of positive squares in only one way, i.e., 3648522409 + 218596225 = 60403^2 + 14785^2 .

It is not an unprimeable number, because it can be changed into a prime (3867118637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 966779657 + ... + 966779660.

Almost surely, 2^3867118634 is an apocalyptic number.

3867118634 is a deficient number, since it is larger than the sum of its proper divisors (1933559320).

3867118634 is a wasteful number, since it uses less digits than its factorization.

3867118634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933559319.

The product of its digits is 580608, while the sum is 47.

The square root of 3867118634 is about 62186.1611132252. The cubic root of 3867118634 is about 1569.6247272703.

The spelling of 3867118634 in words is "three billion, eight hundred sixty-seven million, one hundred eighteen thousand, six hundred thirty-four".