845089402500 has 1200 divisors, whose sum is σ = 3365747616000. Its totient is φ = 184764888000.

The previous prime is 845089402489. The next prime is 845089402561. The reversal of 845089402500 is 5204980548.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

845089402500 is a `hidden beast` number, since 8 + 4 + 50 + 8 + 94 + 0 + 2 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 12075 × 7245 × 9660.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 399 ways as a sum of consecutive naturals, for example, 36743017489 + ... + 36743017511.

It is an arithmetic number, because the mean of its divisors is an integer number (2804789680).

Almost surely, 2^845089402500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845089402500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682873808000).

845089402500 is an abundant number, since it is smaller than the sum of its proper divisors (2520658213500).

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

845089402500 is an frugal number, since it uses more digits than its factorization.

845089402500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 845089402500 in words is "eight hundred forty-five billion, eighty-nine million, four hundred two thousand, five hundred".