49479013121679 has 48 divisors (see below), whose sum is σ = 75481622012160. Its totient is φ = 31169197382400.

The previous prime is 49479013121623. The next prime is 49479013121687. The reversal of 49479013121679 is 97612131097494.

49479013121679 is a `hidden beast` number, since 4 + 9 + 479 + 0 + 131 + 21 + 6 + 7 + 9 = 666.

It is not a de Polignac number, because 49479013121679 - 2⁸ = 49479013121423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49479013121609) 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 47 ways as a sum of consecutive naturals, for example, 227694279 + ... + 227911479.

It is an arithmetic number, because the mean of its divisors is an integer number (1572533791920).

Almost surely, 2^{49479013121679} is an apocalyptic number.

49479013121679 is a deficient number, since it is larger than the sum of its proper divisors (26002608890481).

49479013121679 is a wasteful number, since it uses less digits than its factorization.

49479013121679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230572 (or 230569 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 49479013121679 in words is "forty-nine trillion, four hundred seventy-nine billion, thirteen million, one hundred twenty-one thousand, six hundred seventy-nine".