18734446061776 has 40 divisors (see below), whose sum is σ = 39471899295240. Its totient is φ = 8577933963264.

The previous prime is 18734446061753. The next prime is 18734446061893. The reversal of 18734446061776 is 67716064443781.

It can be written as a sum of positive squares in 4 ways, for example, as 5288730476176 + 13445715585600 = 2299724^2 + 3666840^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930755341 + ... + 930775468.

It is an arithmetic number, because the mean of its divisors is an integer number (986797482381).

Almost surely, 2^{18734446061776} is an apocalyptic number.

18734446061776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18734446061776 is an abundant number, since it is smaller than the sum of its proper divisors (20737453233464).

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

18734446061776 is a wasteful number, since it uses less digits than its factorization.

18734446061776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861530871 (or 1861530865 counting only the distinct ones).

The product of its (nonzero) digits is 113799168, while the sum is 64.

The spelling of 18734446061776 in words is "eighteen trillion, seven hundred thirty-four billion, four hundred forty-six million, sixty-one thousand, seven hundred seventy-six".