11897562384240 has 160 divisors (see below), whose sum is σ = 39745857102336. Its totient is φ = 2926691374080.

The previous prime is 11897562384139. The next prime is 11897562384307. The reversal of 11897562384240 is 4248326579811.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3452467 + ... + 5976173.

It is a 2-persistent number, because it is pandigital, and so is 2⋅11897562384240 = 23795124768480, but 3⋅11897562384240 = 35692687152720 is not.

Almost surely, 2^{11897562384240} is an apocalyptic number.

11897562384240 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 11897562384240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19872928551168).

11897562384240 is an abundant number, since it is smaller than the sum of its proper divisors (27848294718096).

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

11897562384240 is a wasteful number, since it uses less digits than its factorization.

11897562384240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525247 (or 2525241 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 11897562384240 in words is "eleven trillion, eight hundred ninety-seven billion, five hundred sixty-two million, three hundred eighty-four thousand, two hundred forty".