3936623642428 has 12 divisors (see below), whose sum is σ = 6889106328832. Its totient is φ = 1968307548480.

The previous prime is 3936623642383. The next prime is 3936623642429. The reversal of 3936623642428 is 8242463266393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3936623642429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1956388 + ... + 3420628.

Almost surely, 2^{3936623642428} is an apocalyptic number.

It is an amenable number.

3936623642428 is a deficient number, since it is larger than the sum of its proper divisors (2952482686404).

3936623642428 is a wasteful number, since it uses less digits than its factorization.

3936623642428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136372 (or 2136370 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 58.

The spelling of 3936623642428 in words is "three trillion, nine hundred thirty-six billion, six hundred twenty-three million, six hundred forty-two thousand, four hundred twenty-eight".