5271832121778 has 12 divisors (see below), whose sum is σ = 11422302930558. Its totient is φ = 1757277373920.

The previous prime is 5271832121761. The next prime is 5271832121791. The reversal of 5271832121778 is 8771212381725.

5271832121778 is a `hidden beast` number, since 5 + 27 + 18 + 321 + 217 + 78 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3388644043929 + 1883188077849 = 1840827^2 + 1372293^2 .

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, 146439781143 + ... + 146439781178.

Almost surely, 2^{5271832121778} is an apocalyptic number.

5271832121778 is an abundant number, since it is smaller than the sum of its proper divisors (6150470808780).

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

5271832121778 is a wasteful number, since it uses less digits than its factorization.

5271832121778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292879562329 (or 292879562326 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 54.

The spelling of 5271832121778 in words is "five trillion, two hundred seventy-one billion, eight hundred thirty-two million, one hundred twenty-one thousand, seven hundred seventy-eight".