11889907567920 has 400 divisors, whose sum is σ = 42224643423072. Its totient is φ = 3099722895360.

The previous prime is 11889907567913. The next prime is 11889907567957. The reversal of 11889907567920 is 2976570998811.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 96445039 + ... + 96568241.

Almost surely, 2^{11889907567920} is an apocalyptic number.

11889907567920 is a gapful number since it is divisible by the number (10) 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 11889907567920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21112321711536).

11889907567920 is an abundant number, since it is smaller than the sum of its proper divisors (30334735855152).

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

11889907567920 is a wasteful number, since it uses less digits than its factorization.

11889907567920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123562 (or 123547 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 72.

The spelling of 11889907567920 in words is "eleven trillion, eight hundred eighty-nine billion, nine hundred seven million, five hundred sixty-seven thousand, nine hundred twenty".