3781955612 has 6 divisors (see below), whose sum is σ = 6618422328. Its totient is φ = 1890977804.

The previous prime is 3781955591. The next prime is 3781955621. The reversal of 3781955612 is 2165591873.

It is a super-2 number, since 2×3781955612² = 28606376502276589088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472744448 + ... + 472744455.

It is an arithmetic number, because the mean of its divisors is an integer number (1103070388).

Almost surely, 2^3781955612 is an apocalyptic number.

It is an amenable number.

3781955612 is a deficient number, since it is larger than the sum of its proper divisors (2836466716).

3781955612 is a wasteful number, since it uses less digits than its factorization.

3781955612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945488907 (or 945488905 counting only the distinct ones).

The product of its digits is 453600, while the sum is 47.

The square root of 3781955612 is about 61497.6065550522. The cubic root of 3781955612 is about 1558.0168219074.

The spelling of 3781955612 in words is "three billion, seven hundred eighty-one million, nine hundred fifty-five thousand, six hundred twelve".