11897669910 has 96 divisors (see below), whose sum is σ = 33243499872. Its totient is φ = 2717245440.

The previous prime is 11897669881. The next prime is 11897669933. The reversal of 11897669910 is 1996679811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2380374 + ... + 2385366.

It is an arithmetic number, because the mean of its divisors is an integer number (346286457).

Almost surely, 2^11897669910 is an apocalyptic number.

11897669910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11897669910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16621749936).

11897669910 is an abundant number, since it is smaller than the sum of its proper divisors (21345829962).

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

11897669910 is a wasteful number, since it uses less digits than its factorization.

11897669910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6638 (or 6631 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 57.

Subtracting from 11897669910 its reverse (1996679811), we obtain a palindrome (9900990099).

The spelling of 11897669910 in words is "eleven billion, eight hundred ninety-seven million, six hundred sixty-nine thousand, nine hundred ten".