21498473009325 has 48 divisors (see below), whose sum is σ = 38282968233216. Its totient is φ = 10582574764800.

The previous prime is 21498473009267. The next prime is 21498473009339. The reversal of 21498473009325 is 52390037489412.

It is not a de Polignac number, because 21498473009325 - 2¹⁰ = 21498473008301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6692620 + ... + 9369530.

It is an arithmetic number, because the mean of its divisors is an integer number (797561838192).

Almost surely, 2^{21498473009325} is an apocalyptic number.

21498473009325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21498473009325 is a deficient number, since it is larger than the sum of its proper divisors (16784495223891).

21498473009325 is a wasteful number, since it uses less digits than its factorization.

21498473009325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685174 (or 2685169 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 21498473009325 in words is "twenty-one trillion, four hundred ninety-eight billion, four hundred seventy-three million, nine thousand, three hundred twenty-five".