988776665712 has 240 divisors, whose sum is σ = 3085694217216. Its totient is φ = 293022912000.

The previous prime is 988776665707. The next prime is 988776665719. The reversal of 988776665712 is 217566677889.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988776665719) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26090137 + ... + 26128007.

Almost surely, 2^988776665712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 988776665712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1542847108608).

988776665712 is an abundant number, since it is smaller than the sum of its proper divisors (2096917551504).

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

988776665712 is a wasteful number, since it uses less digits than its factorization.

988776665712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38260 (or 38251 counting only the distinct ones).

The product of its digits is 426746880, while the sum is 72.

The spelling of 988776665712 in words is "nine hundred eighty-eight billion, seven hundred seventy-six million, six hundred sixty-five thousand, seven hundred twelve".