49444462121 has 4 divisors (see below), whose sum is σ = 49477670100. Its totient is φ = 49411254144.

The previous prime is 49444462117. The next prime is 49444462157. The reversal of 49444462121 is 12126444494.

49444462121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4430899225 + 45013562896 = 66565^2 + 212164^2 .

It is a cyclic number.

It is not a de Polignac number, because 49444462121 - 2² = 49444462117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49444452121) 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, 16601756 + ... + 16604733.

It is an arithmetic number, because the mean of its divisors is an integer number (12369417525).

Almost surely, 2^49444462121 is an apocalyptic number.

It is an amenable number.

49444462121 is a deficient number, since it is larger than the sum of its proper divisors (33207979).

49444462121 is a wasteful number, since it uses less digits than its factorization.

49444462121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33207978.

The product of its digits is 221184, while the sum is 41.

The spelling of 49444462121 in words is "forty-nine billion, four hundred forty-four million, four hundred sixty-two thousand, one hundred twenty-one".