137988854857 has 4 divisors (see below), whose sum is σ = 157701548416. Its totient is φ = 118276161300.

The previous prime is 137988854831. The next prime is 137988854879. The reversal of 137988854857 is 758458889731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 758458889731 = 149 ⋅5090328119.

It is a cyclic number.

It is not a de Polignac number, because 137988854857 - 2³¹ = 135841371209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137988854857.

It is not an unprimeable number, because it can be changed into a prime (137988854057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9856346769 + ... + 9856346782.

It is an arithmetic number, because the mean of its divisors is an integer number (39425387104).

Almost surely, 2^137988854857 is an apocalyptic number.

It is an amenable number.

137988854857 is a deficient number, since it is larger than the sum of its proper divisors (19712693559).

137988854857 is an equidigital number, since it uses as much as digits as its factorization.

137988854857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19712693558.

The product of its digits is 541900800, while the sum is 73.

The spelling of 137988854857 in words is "one hundred thirty-seven billion, nine hundred eighty-eight million, eight hundred fifty-four thousand, eight hundred fifty-seven".