969090919808 has 128 divisors (see below), whose sum is σ = 2272088996640. Its totient is φ = 406761472000.

The previous prime is 969090919789. The next prime is 969090919829. The reversal of 969090919808 is 808919090969.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (68).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886658 + ... + 1650558.

Almost surely, 2^969090919808 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 969090919808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1136044498320).

969090919808 is an abundant number, since it is smaller than the sum of its proper divisors (1302998076832).

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

969090919808 is a wasteful number, since it uses less digits than its factorization.

969090919808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763996 (or 763984 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 68.

The spelling of 969090919808 in words is "nine hundred sixty-nine billion, ninety million, nine hundred nineteen thousand, eight hundred eight".