2381639898494 has 4 divisors (see below), whose sum is σ = 3572459847744. Its totient is φ = 1190819949246.

The previous prime is 2381639898439. The next prime is 2381639898499. The reversal of 2381639898494 is 4948989361832.

2381639898494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381639898499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 595409974622 + ... + 595409974625.

It is an arithmetic number, because the mean of its divisors is an integer number (893114961936).

Almost surely, 2^{2381639898494} is an apocalyptic number.

2381639898494 is a deficient number, since it is larger than the sum of its proper divisors (1190819949250).

2381639898494 is a wasteful number, since it uses less digits than its factorization.

2381639898494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190819949249.

The product of its digits is 644972544, while the sum is 74.

The spelling of 2381639898494 in words is "two trillion, three hundred eighty-one billion, six hundred thirty-nine million, eight hundred ninety-eight thousand, four hundred ninety-four".