18768345140428 has 96 divisors (see below), whose sum is σ = 35803190771712. Its totient is φ = 8557319520000.

The previous prime is 18768345140393. The next prime is 18768345140483. The reversal of 18768345140428 is 82404154386781.

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 31 ways as a sum of consecutive naturals, for example, 904793425 + ... + 904814167.

It is an arithmetic number, because the mean of its divisors is an integer number (372949903872).

Almost surely, 2^{18768345140428} is an apocalyptic number.

It is an amenable number.

18768345140428 is a deficient number, since it is larger than the sum of its proper divisors (17034845631284).

18768345140428 is a wasteful number, since it uses less digits than its factorization.

18768345140428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21575 (or 21573 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 61.

The spelling of 18768345140428 in words is "eighteen trillion, seven hundred sixty-eight billion, three hundred forty-five million, one hundred forty thousand, four hundred twenty-eight".