3835670643 has 12 divisors (see below), whose sum is σ = 6331900848. Its totient is φ = 2191811760.

The previous prime is 3835670633. The next prime is 3835670681. The reversal of 3835670643 is 3460765383.

3835670643 is a `hidden beast` number, since 3 + 83 + 567 + 0 + 6 + 4 + 3 = 666.

It is not a de Polignac number, because 3835670643 - 2⁴ = 3835670627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3835670603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30441768 + ... + 30441893.

It is an arithmetic number, because the mean of its divisors is an integer number (527658404).

Almost surely, 2^3835670643 is an apocalyptic number.

3835670643 is a deficient number, since it is larger than the sum of its proper divisors (2496230205).

3835670643 is a wasteful number, since it uses less digits than its factorization.

3835670643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60883674 (or 60883671 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The square root of 3835670643 is about 61932.7913386762. The cubic root of 3835670643 is about 1565.3583330923.

The spelling of 3835670643 in words is "three billion, eight hundred thirty-five million, six hundred seventy thousand, six hundred forty-three".