16748043771438 has 72 divisors (see below), whose sum is σ = 43573580706240. Its totient is φ = 4630795505280.

The previous prime is 16748043771401. The next prime is 16748043771463. The reversal of 16748043771438 is 83417734084761.

It is a happy number.

16748043771438 is a `hidden beast` number, since 1 + 6 + 7 + 480 + 4 + 3 + 7 + 7 + 143 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 306242203 + ... + 306296886.

It is an arithmetic number, because the mean of its divisors is an integer number (605188620920).

Almost surely, 2^{16748043771438} is an apocalyptic number.

16748043771438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16748043771438 is an abundant number, since it is smaller than the sum of its proper divisors (26825536934802).

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

16748043771438 is a wasteful number, since it uses less digits than its factorization.

16748043771438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612539142 (or 612539132 counting only the distinct ones).

The product of its (nonzero) digits is 75866112, while the sum is 63.

The spelling of 16748043771438 in words is "sixteen trillion, seven hundred forty-eight billion, forty-three million, seven hundred seventy-one thousand, four hundred thirty-eight".