2019632149638 has 48 divisors (see below), whose sum is σ = 4389897170880. Its totient is φ = 671054651568.

The previous prime is 2019632149631. The next prime is 2019632149679. The reversal of 2019632149638 is 8369412369102.

2019632149638 is a `hidden beast` number, since 2 + 0 + 1 + 96 + 32 + 1 + 496 + 38 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019632149631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12108081 + ... + 12273747.

It is an arithmetic number, because the mean of its divisors is an integer number (91456191060).

Almost surely, 2^{2019632149638} is an apocalyptic number.

2019632149638 is an abundant number, since it is smaller than the sum of its proper divisors (2370265021242).

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

2019632149638 is a wasteful number, since it uses less digits than its factorization.

2019632149638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167841 (or 167838 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 2019632149638 in words is "two trillion, nineteen billion, six hundred thirty-two million, one hundred forty-nine thousand, six hundred thirty-eight".