49813637321 has 4 divisors (see below), whose sum is σ = 56929871232. Its totient is φ = 42697403412.

The previous prime is 49813637317. The next prime is 49813637327. The reversal of 49813637321 is 12373631894.

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 49813637321 - 2² = 49813637317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49813637327) 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, 3558116945 + ... + 3558116958.

It is an arithmetic number, because the mean of its divisors is an integer number (14232467808).

Almost surely, 2^49813637321 is an apocalyptic number.

It is an amenable number.

49813637321 is a deficient number, since it is larger than the sum of its proper divisors (7116233911).

49813637321 is an equidigital number, since it uses as much as digits as its factorization.

49813637321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7116233910.

The product of its digits is 653184, while the sum is 47.

The spelling of 49813637321 in words is "forty-nine billion, eight hundred thirteen million, six hundred thirty-seven thousand, three hundred twenty-one".