4638894626136 has 64 divisors (see below), whose sum is σ = 12221381318400. Its totient is φ = 1463262427008.

The previous prime is 4638894626087. The next prime is 4638894626137. The reversal of 4638894626136 is 6316264988364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638894626137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5330035 + ... + 6138978.

It is an arithmetic number, because the mean of its divisors is an integer number (190959083100).

Almost surely, 2^{4638894626136} is an apocalyptic number.

It is an amenable number.

4638894626136 is an abundant number, since it is smaller than the sum of its proper divisors (7582486692264).

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

4638894626136 is a wasteful number, since it uses less digits than its factorization.

4638894626136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11469928 (or 11469924 counting only the distinct ones).

The product of its digits is 214990848, while the sum is 66.

The spelling of 4638894626136 in words is "four trillion, six hundred thirty-eight billion, eight hundred ninety-four million, six hundred twenty-six thousand, one hundred thirty-six".