2798144423172 has 144 divisors (see below), whose sum is σ = 8577191024640. Its totient is φ = 786363681600.

The previous prime is 2798144423171. The next prime is 2798144423201. The reversal of 2798144423172 is 2713244418972.

2798144423172 is a `hidden beast` number, since 2 + 7 + 9 + 8 + 1 + 44 + 423 + 172 = 666.

It is a super-2 number, since 2×2798144423172² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2798144423171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4011204 + ... + 4656827.

It is an arithmetic number, because the mean of its divisors is an integer number (59563826560).

Almost surely, 2^{2798144423172} is an apocalyptic number.

It is an amenable number.

2798144423172 is an abundant number, since it is smaller than the sum of its proper divisors (5779046601468).

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

2798144423172 is a wasteful number, since it uses less digits than its factorization.

2798144423172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8668119 (or 8668104 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The spelling of 2798144423172 in words is "two trillion, seven hundred ninety-eight billion, one hundred forty-four million, four hundred twenty-three thousand, one hundred seventy-two".