49991146579 has 8 divisors (see below), whose sum is σ = 54538007472. Its totient is φ = 45444654240.

The previous prime is 49991146559. The next prime is 49991146603. The reversal of 49991146579 is 97564119994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49991146579 - 2¹³ = 49991138387 is a prime.

It is a super-2 number, since 2×49991146579² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49991146579.

It is not an unprimeable number, because it can be changed into a prime (49991146519) 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 7 ways as a sum of consecutive naturals, for example, 245197 + ... + 400129.

It is an arithmetic number, because the mean of its divisors is an integer number (6817250934).

Almost surely, 2^49991146579 is an apocalyptic number.

49991146579 is a deficient number, since it is larger than the sum of its proper divisors (4546860893).

49991146579 is a wasteful number, since it uses less digits than its factorization.

49991146579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184277.

The product of its digits is 22044960, while the sum is 64.

The spelling of 49991146579 in words is "forty-nine billion, nine hundred ninety-one million, one hundred forty-six thousand, five hundred seventy-nine".