49507118137 has 4 divisors (see below), whose sum is σ = 50246030416. Its totient is φ = 48768205860.

The previous prime is 49507118119. The next prime is 49507118153. The reversal of 49507118137 is 73181170594.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49507118137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49507118197) 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 3 ways as a sum of consecutive naturals, for example, 369456039 + ... + 369456172.

It is an arithmetic number, because the mean of its divisors is an integer number (12561507604).

Almost surely, 2^49507118137 is an apocalyptic number.

It is an amenable number.

49507118137 is a deficient number, since it is larger than the sum of its proper divisors (738912279).

49507118137 is an equidigital number, since it uses as much as digits as its factorization.

49507118137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738912278.

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 49507118137 in words is "forty-nine billion, five hundred seven million, one hundred eighteen thousand, one hundred thirty-seven".