20474121047250 has 192 divisors, whose sum is σ = 56514220079616. Its totient is φ = 4932552768000.

The previous prime is 20474121047221. The next prime is 20474121047273. The reversal of 20474121047250 is 5274012147402.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 20474121047199 and 20474121047208.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4238830 + ... + 7675670.

It is an arithmetic number, because the mean of its divisors is an integer number (294344896248).

Almost surely, 2^{20474121047250} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20474121047250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28257110039808).

20474121047250 is an abundant number, since it is smaller than the sum of its proper divisors (36040099032366).

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

20474121047250 is a wasteful number, since it uses less digits than its factorization.

20474121047250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436934 (or 3436911 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The spelling of 20474121047250 in words is "twenty trillion, four hundred seventy-four billion, one hundred twenty-one million, forty-seven thousand, two hundred fifty".