1234550550420 has 336 divisors, whose sum is σ = 4243596178752. Its totient is φ = 299061227520.

The previous prime is 1234550550397. The next prime is 1234550550427. The reversal of 1234550550420 is 240550554321.

1234550550420 is a `hidden beast` number, since 1 + 2 + 34 + 5 + 50 + 550 + 4 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234550550427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 338881119 + ... + 338884761.

It is an arithmetic number, because the mean of its divisors is an integer number (12629750532).

Almost surely, 2^{1234550550420} is an apocalyptic number.

1234550550420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234550550420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2121798089376).

1234550550420 is an abundant number, since it is smaller than the sum of its proper divisors (3009045628332).

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

1234550550420 is a wasteful number, since it uses less digits than its factorization.

1234550550420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5794 (or 5777 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 1234550550420 in words is "one trillion, two hundred thirty-four billion, five hundred fifty million, five hundred fifty thousand, four hundred twenty".