8122037644 has 12 divisors (see below), whose sum is σ = 16244075344. Its totient is φ = 3480873264.

The previous prime is 8122037533. The next prime is 8122037653. The reversal of 8122037644 is 4467302218.

8122037644 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145036359 + ... + 145036414.

Almost surely, 2^8122037644 is an apocalyptic number.

It is an amenable number.

8122037644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8122037644 is a wasteful number, since it uses less digits than its factorization.

8122037644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290072784 (or 290072782 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 8122037644 is about 90122.3481939968. The cubic root of 8122037644 is about 2010.1185250603.

The spelling of 8122037644 in words is "eight billion, one hundred twenty-two million, thirty-seven thousand, six hundred forty-four".