49518102013 has 8 divisors (see below), whose sum is σ = 49692360632. Its totient is φ = 49344132096.

The previous prime is 49518102001. The next prime is 49518102017. The reversal of 49518102013 is 31020181594.

It can be written as a sum of positive squares in 4 ways, for example, as 3703696164 + 45814405849 = 60858^2 + 214043^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49518102013 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 49518102013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49518102017) 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, 274381 + ... + 417517.

It is an arithmetic number, because the mean of its divisors is an integer number (6211545079).

Almost surely, 2^49518102013 is an apocalyptic number.

It is an amenable number.

49518102013 is a deficient number, since it is larger than the sum of its proper divisors (174258619).

49518102013 is a wasteful number, since it uses less digits than its factorization.

49518102013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144351.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 49518102013 in words is "forty-nine billion, five hundred eighteen million, one hundred two thousand, thirteen".