988770384081 has 24 divisors (see below), whose sum is σ = 1439106125184. Its totient is φ = 654170489280.

The previous prime is 988770384067. The next prime is 988770384097. The reversal of 988770384081 is 180483077889.

It is a de Polignac number, because none of the positive numbers 2^k-988770384081 is a prime.

It is a super-2 number, since 2×988770384081² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (988770384011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 394236 + ... + 1460466.

It is an arithmetic number, because the mean of its divisors is an integer number (59962755216).

Almost surely, 2^988770384081 is an apocalyptic number.

It is an amenable number.

988770384081 is a deficient number, since it is larger than the sum of its proper divisors (450335741103).

988770384081 is a wasteful number, since it uses less digits than its factorization.

988770384081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067021 (or 1067018 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 63.

The spelling of 988770384081 in words is "nine hundred eighty-eight billion, seven hundred seventy million, three hundred eighty-four thousand, eighty-one".