2308487742138 has 8 divisors (see below), whose sum is σ = 4616975484288. Its totient is φ = 769495914044.

The previous prime is 2308487742059. The next prime is 2308487742199. The reversal of 2308487742138 is 8312477848032.

2308487742138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

2308487742138 is an admirable number.

It is a super-2 number, since 2×2308487742138² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192373978506 + ... + 192373978517.

It is an arithmetic number, because the mean of its divisors is an integer number (577121935536).

Almost surely, 2^{2308487742138} is an apocalyptic number.

2308487742138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2308487742138 is a wasteful number, since it uses less digits than its factorization.

2308487742138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384747957028.

The product of its (nonzero) digits is 14450688, while the sum is 57.

The spelling of 2308487742138 in words is "two trillion, three hundred eight billion, four hundred eighty-seven million, seven hundred forty-two thousand, one hundred thirty-eight".