18076747776 has 192 divisors, whose sum is σ = 50269040640. Its totient is φ = 5770199040.

The previous prime is 18076747757. The next prime is 18076747783. The reversal of 18076747776 is 67774767081.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20379205 + ... + 20380091.

It is an arithmetic number, because the mean of its divisors is an integer number (261817920).

Almost surely, 2^18076747776 is an apocalyptic number.

18076747776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18076747776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25134520320).

18076747776 is an abundant number, since it is smaller than the sum of its proper divisors (32192292864).

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

18076747776 is a wasteful number, since it uses less digits than its factorization.

18076747776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050 (or 1030 counting only the distinct ones).

The product of its (nonzero) digits is 19361664, while the sum is 60.

The spelling of 18076747776 in words is "eighteen billion, seventy-six million, seven hundred forty-seven thousand, seven hundred seventy-six".