18831667740842 has 32 divisors (see below), whose sum is σ = 32798958234624. Its totient is φ = 8014148684800.

The previous prime is 18831667740839. The next prime is 18831667740901. The reversal of 18831667740842 is 24804776613881.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 131740223 + ... + 131883090.

It is an arithmetic number, because the mean of its divisors is an integer number (1024967444832).

Almost surely, 2^{18831667740842} is an apocalyptic number.

18831667740842 is a deficient number, since it is larger than the sum of its proper divisors (13967290493782).

18831667740842 is a wasteful number, since it uses less digits than its factorization.

18831667740842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263623534.

The product of its (nonzero) digits is 86704128, while the sum is 65.

The spelling of 18831667740842 in words is "eighteen trillion, eight hundred thirty-one billion, six hundred sixty-seven million, seven hundred forty thousand, eight hundred forty-two".