51378875585300 has 18 divisors (see below), whose sum is σ = 111492160020318. Its totient is φ = 20551550234080.

The previous prime is 51378875585231. The next prime is 51378875585341. The reversal of 51378875585300 is 358557887315.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 570006880144 + 50808868705156 = 754988^2 + 7128034^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 256894377827 + ... + 256894378026.

Almost surely, 2^{51378875585300} is an apocalyptic number.

51378875585300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51378875585300 is an abundant number, since it is smaller than the sum of its proper divisors (60113284435018).

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

51378875585300 is a wasteful number, since it uses less digits than its factorization.

51378875585300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513788755867 (or 513788755860 counting only the distinct ones).

The product of its (nonzero) digits is 141120000, while the sum is 65.

The spelling of 51378875585300 in words is "fifty-one trillion, three hundred seventy-eight billion, eight hundred seventy-five million, five hundred eighty-five thousand, three hundred".