551473009999 has 8 divisors (see below), whose sum is σ = 552429344768. Its totient is φ = 550516833720.

The previous prime is 551473009973. The next prime is 551473010021. The reversal of 551473009999 is 999900374155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551473009999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551473009909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8508814 + ... + 8573380.

It is an arithmetic number, because the mean of its divisors is an integer number (69053668096).

Almost surely, 2^551473009999 is an apocalyptic number.

551473009999 is a deficient number, since it is larger than the sum of its proper divisors (956334769).

551473009999 is a wasteful number, since it uses less digits than its factorization.

551473009999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79245.

The product of its (nonzero) digits is 13778100, while the sum is 61.

The spelling of 551473009999 in words is "five hundred fifty-one billion, four hundred seventy-three million, nine thousand, nine hundred ninety-nine".