18077317068 has 12 divisors (see below), whose sum is σ = 42180406520. Its totient is φ = 6025772352.

The previous prime is 18077317051. The next prime is 18077317073. The reversal of 18077317068 is 86071377081.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753221533 + ... + 753221556.

Almost surely, 2^18077317068 is an apocalyptic number.

It is an amenable number.

18077317068 is an abundant number, since it is smaller than the sum of its proper divisors (24103089452).

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

18077317068 is a wasteful number, since it uses less digits than its factorization.

18077317068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506443096 (or 1506443094 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 48.

The spelling of 18077317068 in words is "eighteen billion, seventy-seven million, three hundred seventeen thousand, sixty-eight".