4798172261556 has 36 divisors (see below), whose sum is σ = 12131179351200. Its totient is φ = 1599065549328.

The previous prime is 4798172261551. The next prime is 4798172261557. The reversal of 4798172261556 is 6551622718974.

It is a happy number.

4798172261556 is a `hidden beast` number, since 4 + 7 + 9 + 8 + 1 + 7 + 2 + 2 + 615 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×4798172261556² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4798172261493 and 4798172261502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4798172261551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13370646 + ... + 13724813.

It is an arithmetic number, because the mean of its divisors is an integer number (336977204200).

Almost surely, 2^{4798172261556} is an apocalyptic number.

It is an amenable number.

4798172261556 is an abundant number, since it is smaller than the sum of its proper divisors (7333007089644).

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

4798172261556 is a wasteful number, since it uses less digits than its factorization.

4798172261556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27100388 (or 27100383 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 63.

The spelling of 4798172261556 in words is "four trillion, seven hundred ninety-eight billion, one hundred seventy-two million, two hundred sixty-one thousand, five hundred fifty-six".