37643201812 has 12 divisors (see below), whose sum is σ = 69342740320. Its totient is φ = 17830990296.

The previous prime is 37643201807. The next prime is 37643201819. The reversal of 37643201812 is 21810234673.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37643201819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247652568 + ... + 247652719.

Almost surely, 2^37643201812 is an apocalyptic number.

It is an amenable number.

37643201812 is a deficient number, since it is larger than the sum of its proper divisors (31699538508).

37643201812 is a wasteful number, since it uses less digits than its factorization.

37643201812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495305310 (or 495305308 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 37643201812 in words is "thirty-seven billion, six hundred forty-three million, two hundred one thousand, eight hundred twelve".