49745320518 has 16 divisors (see below), whose sum is σ = 99492986880. Its totient is φ = 16581382536.

The previous prime is 49745320453. The next prime is 49745320553. The reversal of 49745320518 is 81502354794.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306603 + ... + 439881.

It is an arithmetic number, because the mean of its divisors is an integer number (6218311680).

Almost surely, 2^49745320518 is an apocalyptic number.

49745320518 is an abundant number, since it is smaller than the sum of its proper divisors (49747666362).

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

49745320518 is a wasteful number, since it uses less digits than its factorization.

49745320518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195491.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 49745320518 in words is "forty-nine billion, seven hundred forty-five million, three hundred twenty thousand, five hundred eighteen".