851456245500 has 1920 divisors, whose sum is σ = 3580121825280. Its totient is φ = 171694080000.

The previous prime is 851456245489. The next prime is 851456245511. The reversal of 851456245500 is 5542654158.

851456245500 is a `hidden beast` number, since 8 + 5 + 1 + 45 + 62 + 45 + 500 = 666.

It is an interprime number because it is at equal distance from previous prime (851456245489) and next prime (851456245511).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 6125584431 + ... + 6125584569.

It is an arithmetic number, because the mean of its divisors is an integer number (1864646784).

Almost surely, 2^851456245500 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 851456245500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1790060912640).

851456245500 is an abundant number, since it is smaller than the sum of its proper divisors (2728665579780).

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

851456245500 is a wasteful number, since it uses less digits than its factorization.

851456245500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 45.

Adding to 851456245500 its reverse (5542654158), we get a palindrome (856998899658).

The spelling of 851456245500 in words is "eight hundred fifty-one billion, four hundred fifty-six million, two hundred forty-five thousand, five hundred".