4551791238 has 48 divisors (see below), whose sum is σ = 9967928256. Its totient is φ = 1501072560.

The previous prime is 4551791227. The next prime is 4551791243. The reversal of 4551791238 is 8321971554.

4551791238 is a `hidden beast` number, since 4 + 5 + 517 + 9 + 123 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 4551791193 and 4551791202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 815445 + ... + 821007.

It is an arithmetic number, because the mean of its divisors is an integer number (207665172).

Almost surely, 2^4551791238 is an apocalyptic number.

4551791238 is an abundant number, since it is smaller than the sum of its proper divisors (5416137018).

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

4551791238 is a wasteful number, since it uses less digits than its factorization.

4551791238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049 (or 6046 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 4551791238 is about 67466.9640490811. The cubic root of 4551791238 is about 1657.2732169949.

The spelling of 4551791238 in words is "four billion, five hundred fifty-one million, seven hundred ninety-one thousand, two hundred thirty-eight".