550739473978890 has 384 divisors, whose sum is σ = 1594360582963200. Its totient is φ = 121271299269120.

The previous prime is 550739473978873. The next prime is 550739473978891. The reversal of 550739473978890 is 98879374937055.

It is not an unprimeable number, because it can be changed into a prime (550739473978891) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 40504477572 + ... + 40504491168.

It is an arithmetic number, because the mean of its divisors is an integer number (4151980684800).

Almost surely, 2^{550739473978890} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550739473978890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797180291481600).

550739473978890 is an abundant number, since it is smaller than the sum of its proper divisors (1043621108984310).

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

550739473978890 is a wasteful number, since it uses less digits than its factorization.

550739473978890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17610 (or 17603 counting only the distinct ones).

The product of its (nonzero) digits is 14402707200, while the sum is 84.

The spelling of 550739473978890 in words is "five hundred fifty trillion, seven hundred thirty-nine billion, four hundred seventy-three million, nine hundred seventy-eight thousand, eight hundred ninety".