49179479161 has 4 divisors (see below), whose sum is σ = 50875323300. Its totient is φ = 47483635024.

The previous prime is 49179479099. The next prime is 49179479269. The reversal of 49179479161 is 16197497194.

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 10267971561 + 38911507600 = 101331^2 + 197260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49179479161 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49179479096 and 49179479105.

It is not an unprimeable number, because it can be changed into a prime (49179479861) 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, 847922026 + ... + 847922083.

It is an arithmetic number, because the mean of its divisors is an integer number (12718830825).

Almost surely, 2^49179479161 is an apocalyptic number.

It is an amenable number.

49179479161 is a deficient number, since it is larger than the sum of its proper divisors (1695844139).

49179479161 is a wasteful number, since it uses less digits than its factorization.

49179479161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695844138.

The product of its digits is 3429216, while the sum is 58.

The spelling of 49179479161 in words is "forty-nine billion, one hundred seventy-nine million, four hundred seventy-nine thousand, one hundred sixty-one".