4538809426672 has 40 divisors (see below), whose sum is σ = 9116578823040. Its totient is φ = 2186772311040.

The previous prime is 4538809426631. The next prime is 4538809426699. The reversal of 4538809426672 is 2766249088354.

It is a happy number.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19521397 + ... + 19752532.

It is an arithmetic number, because the mean of its divisors is an integer number (227914470576).

Almost surely, 2^{4538809426672} is an apocalyptic number.

It is an amenable number.

4538809426672 is an abundant number, since it is smaller than the sum of its proper divisors (4577769396368).

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

4538809426672 is a wasteful number, since it uses less digits than its factorization.

4538809426672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39274201 (or 39274195 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 64.

The spelling of 4538809426672 in words is "four trillion, five hundred thirty-eight billion, eight hundred nine million, four hundred twenty-six thousand, six hundred seventy-two".