49745320517 has 4 divisors (see below), whose sum is σ = 50902188480. Its totient is φ = 48588452556.

The previous prime is 49745320453. The next prime is 49745320553. The reversal of 49745320517 is 71502354794.

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 not a de Polignac number, because 49745320517 - 2⁶ = 49745320453 is a prime.

It is a super-2 number, since 2×49745320517² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49745320717) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 578433917 + ... + 578434002.

It is an arithmetic number, because the mean of its divisors is an integer number (12725547120).

Almost surely, 2^49745320517 is an apocalyptic number.

It is an amenable number.

49745320517 is a deficient number, since it is larger than the sum of its proper divisors (1156867963).

49745320517 is a wasteful number, since it uses less digits than its factorization.

49745320517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156867962.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 49745320517 in words is "forty-nine billion, seven hundred forty-five million, three hundred twenty thousand, five hundred seventeen".