60711931818 has 12 divisors (see below), whose sum is σ = 131542518978. Its totient is φ = 20237310600.

The previous prime is 60711931811. The next prime is 60711931873. The reversal of 60711931818 is 81813911706.

60711931818 is a `hidden beast` number, since 607 + 1 + 1 + 9 + 31 + 8 + 1 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55402332129 + 5309599689 = 235377^2 + 72867^2 .

It is not an unprimeable number, because it can be changed into a prime (60711931811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1686442533 + ... + 1686442568.

Almost surely, 2^60711931818 is an apocalyptic number.

60711931818 is an abundant number, since it is smaller than the sum of its proper divisors (70830587160).

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

60711931818 is a wasteful number, since it uses less digits than its factorization.

60711931818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372885109 (or 3372885106 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The spelling of 60711931818 in words is "sixty billion, seven hundred eleven million, nine hundred thirty-one thousand, eight hundred eighteen".