60831782881 has 3 divisors (see below), whose sum is σ = 60832029523. Its totient is φ = 60831536240.

The previous prime is 60831782863. The next prime is 60831782939. The reversal of 60831782881 is 18828713806.

It is a happy number.

The square root of 60831782881 is 246641.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 60216742881 + 615040000 = 245391^2 + 24800^2 .

It is not a de Polignac number, because 60831782881 - 2²¹ = 60829685729 is a prime.

It is a super-2 number, since 2×60831782881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60831780881) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 123321 + ... + 369961.

Almost surely, 2^60831782881 is an apocalyptic number.

60831782881 is the 246641-st square number.

60831782881 is the 123321-st centered octagonal number.

It is an amenable number.

60831782881 is a deficient number, since it is larger than the sum of its proper divisors (246642).

60831782881 is an frugal number, since it uses more digits than its factorization.

60831782881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493282 (or 246641 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 52.

The spelling of 60831782881 in words is "sixty billion, eight hundred thirty-one million, seven hundred eighty-two thousand, eight hundred eighty-one".