2331214644540 has 24 divisors (see below), whose sum is σ = 6527401004880. Its totient is φ = 621657238528.

The previous prime is 2331214644371. The next prime is 2331214644547. The reversal of 2331214644540 is 454464121332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331214644547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19426788645 + ... + 19426788764.

It is an arithmetic number, because the mean of its divisors is an integer number (271975041870).

Almost surely, 2^{2331214644540} is an apocalyptic number.

2331214644540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2331214644540 is an abundant number, since it is smaller than the sum of its proper divisors (4196186360340).

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

2331214644540 is a wasteful number, since it uses less digits than its factorization.

2331214644540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38853577421 (or 38853577419 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

Adding to 2331214644540 its reverse (454464121332), we get a palindrome (2785678765872).

The spelling of 2331214644540 in words is "two trillion, three hundred thirty-one billion, two hundred fourteen million, six hundred forty-four thousand, five hundred forty".