11897379144 has 672 divisors, whose sum is σ = 43062451200. Its totient is φ = 3056901120.

The previous prime is 11897379107. The next prime is 11897379149. The reversal of 11897379144 is 44197379811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11897379149) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 150599697 + ... + 150599775.

Almost surely, 2^11897379144 is an apocalyptic number.

11897379144 is a gapful number since it is divisible by the number (14) 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 11897379144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21531225600).

11897379144 is an abundant number, since it is smaller than the sum of its proper divisors (31165072056).

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

11897379144 is a wasteful number, since it uses less digits than its factorization.

11897379144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 139 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The spelling of 11897379144 in words is "eleven billion, eight hundred ninety-seven million, three hundred seventy-nine thousand, one hundred forty-four".