1798488249225 has 96 divisors (see below), whose sum is σ = 3421026754560. Its totient is φ = 827667072000.

The previous prime is 1798488249221. The next prime is 1798488249253. The reversal of 1798488249225 is 5229428848971.

It is not a de Polignac number, because 1798488249225 - 2² = 1798488249221 is a prime.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1798488249225.

It is not an unprimeable number, because it can be changed into a prime (1798488249221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 446461 + ... + 1948410.

It is an arithmetic number, because the mean of its divisors is an integer number (35635695360).

Almost surely, 2^{1798488249225} is an apocalyptic number.

1798488249225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1798488249225 is a deficient number, since it is larger than the sum of its proper divisors (1622538505335).

1798488249225 is a wasteful number, since it uses less digits than its factorization.

1798488249225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394951 (or 2394946 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 69.

The spelling of 1798488249225 in words is "one trillion, seven hundred ninety-eight billion, four hundred eighty-eight million, two hundred forty-nine thousand, two hundred twenty-five".