2381612234538 has 16 divisors (see below), whose sum is σ = 4763383693056. Its totient is φ = 793844207520.

The previous prime is 2381612234509. The next prime is 2381612234539. The reversal of 2381612234538 is 8354322161832.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2381612234539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6439443 + ... + 6799238.

It is an arithmetic number, because the mean of its divisors is an integer number (297711480816).

Almost surely, 2^{2381612234538} is an apocalyptic number.

2381612234538 is an abundant number, since it is smaller than the sum of its proper divisors (2381771458518).

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

2381612234538 is a wasteful number, since it uses less digits than its factorization.

2381612234538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13268669.

The product of its digits is 1658880, while the sum is 48.

The spelling of 2381612234538 in words is "two trillion, three hundred eighty-one billion, six hundred twelve million, two hundred thirty-four thousand, five hundred thirty-eight".