51787834100 has 72 divisors (see below), whose sum is σ = 114540377280. Its totient is φ = 20318411520.

The previous prime is 51787834099. The next prime is 51787834127. The reversal of 51787834100 is 143878715.

51787834100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2686697 + ... + 2705903.

Almost surely, 2^51787834100 is an apocalyptic number.

51787834100 is a gapful number since it is divisible by the number (50) 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 51787834100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57270188640).

51787834100 is an abundant number, since it is smaller than the sum of its proper divisors (62752543180).

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

51787834100 is a wasteful number, since it uses less digits than its factorization.

51787834100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19737 (or 19730 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 44.

The spelling of 51787834100 in words is "fifty-one billion, seven hundred eighty-seven million, eight hundred thirty-four thousand, one hundred".