17472421890 has 96 divisors (see below), whose sum is σ = 56637899136. Its totient is φ = 3630631680.

The previous prime is 17472421873. The next prime is 17472421933. The reversal of 17472421890 is 9812427471.

17472421890 is a `hidden beast` number, since 1 + 74 + 72 + 421 + 8 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1253707 + ... + 1267566.

It is an arithmetic number, because the mean of its divisors is an integer number (589978116).

Almost surely, 2^17472421890 is an apocalyptic number.

17472421890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17472421890 is an abundant number, since it is smaller than the sum of its proper divisors (39165477246).

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

17472421890 is a wasteful number, since it uses less digits than its factorization.

17472421890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521304 (or 2521301 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 17472421890 in words is "seventeen billion, four hundred seventy-two million, four hundred twenty-one thousand, eight hundred ninety".