845388302500 has 405 divisors, whose sum is σ = 2241784281429. Its totient is φ = 278041680000.

The previous prime is 845388302471. The next prime is 845388302501. The reversal of 845388302500 is 5203883548.

It is a happy number.

The square root of 845388302500 is 919450.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 280690159204 + 564698143296 = 529802^2 + 751464^2 .

It is not an unprimeable number, because it can be changed into a prime (845388302501) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 11906877465 + ... + 11906877535.

Almost surely, 2^845388302500 is an apocalyptic number.

845388302500 is the 919450-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845388302500

845388302500 is an abundant number, since it is smaller than the sum of its proper divisors (1396395978929).

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

845388302500 is an equidigital number, since it uses as much as digits as its factorization.

845388302500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 845388302500 in words is "eight hundred forty-five billion, three hundred eighty-eight million, three hundred two thousand, five hundred".