49638630453121 has 4 divisors (see below), whose sum is σ = 49638644831700. Its totient is φ = 49638616074544.

The previous prime is 49638630453077. The next prime is 49638630453151. The reversal of 49638630453121 is 12135403683694.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4508933730625 + 45129696722496 = 2123425^2 + 6717864^2 .

It is a cyclic number.

It is not a de Polignac number, because 49638630453121 - 2¹⁷ = 49638630322049 is a prime.

It is a super-3 number, since 3×49638630453121³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49638630453151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448415 + ... + 10068523.

It is an arithmetic number, because the mean of its divisors is an integer number (12409661207925).

Almost surely, 2^{49638630453121} is an apocalyptic number.

It is an amenable number.

49638630453121 is a deficient number, since it is larger than the sum of its proper divisors (14378579).

49638630453121 is an equidigital number, since it uses as much as digits as its factorization.

49638630453121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14378578.

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 49638630453121 in words is "forty-nine trillion, six hundred thirty-eight billion, six hundred thirty million, four hundred fifty-three thousand, one hundred twenty-one".