4138971612 has 36 divisors (see below), whose sum is σ = 9843337560. Its totient is φ = 1353614912.

The previous prime is 4138971583. The next prime is 4138971659. The reversal of 4138971612 is 2161798314.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27687 + ... + 95102.

Almost surely, 2^4138971612 is an apocalyptic number.

It is an amenable number.

4138971612 is an abundant number, since it is smaller than the sum of its proper divisors (5704365948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4138971612 is a wasteful number, since it uses less digits than its factorization.

4138971612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122902 (or 122847 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 4138971612 is about 64334.8397992876. The cubic root of 4138971612 is about 1605.5758083831.

The spelling of 4138971612 in words is "four billion, one hundred thirty-eight million, nine hundred seventy-one thousand, six hundred twelve".