545223939390 has 192 divisors, whose sum is σ = 1607628072960. Its totient is φ = 127093743360.

The previous prime is 545223939389. The next prime is 545223939391. The reversal of 545223939390 is 93939322545.

545223939390 is a `hidden beast` number, since 54 + 522 + 3 + 9 + 39 + 39 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (545223939389) and next prime (545223939391).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545223939391) 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 95 ways as a sum of consecutive naturals, for example, 99654355 + ... + 99659825.

It is an arithmetic number, because the mean of its divisors is an integer number (8373062880).

Almost surely, 2^545223939390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545223939390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803814036480).

545223939390 is an abundant number, since it is smaller than the sum of its proper divisors (1062404133570).

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

545223939390 is a wasteful number, since it uses less digits than its factorization.

545223939390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9999 (or 9996 counting only the distinct ones).

The product of its (nonzero) digits is 7873200, while the sum is 54.

The spelling of 545223939390 in words is "five hundred forty-five billion, two hundred twenty-three million, nine hundred thirty-nine thousand, three hundred ninety".