20489875200 has 324 divisors, whose sum is σ = 73859106048. Its totient is φ = 5419008000.

The previous prime is 20489875183. The next prime is 20489875249. The reversal of 20489875200 is 257898402.

20489875200 is a `hidden beast` number, since 2 + 0 + 48 + 9 + 87 + 520 + 0 = 666.

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 35 ways as a sum of consecutive naturals, for example, 7313800 + ... + 7316600.

Almost surely, 2^20489875200 is an apocalyptic number.

20489875200 is a gapful number since it is divisible by the number (20) 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 20489875200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36929553024).

20489875200 is an abundant number, since it is smaller than the sum of its proper divisors (53369230848).

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

20489875200 is a wasteful number, since it uses less digits than its factorization.

20489875200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960 (or 2938 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 20489875200 in words is "twenty billion, four hundred eighty-nine million, eight hundred seventy-five thousand, two hundred".