49405757179 has 4 divisors (see below), whose sum is σ = 49409747200. Its totient is φ = 49401767160.

The previous prime is 49405757161. The next prime is 49405757183. The reversal of 49405757179 is 97175750494.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97175750494 = 2 ⋅48587875247.

It is a cyclic number.

It is not a de Polignac number, because 49405757179 - 2⁹ = 49405756667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49405757129) 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, 1976379 + ... + 2001220.

It is an arithmetic number, because the mean of its divisors is an integer number (12352436800).

Almost surely, 2^49405757179 is an apocalyptic number.

49405757179 is a deficient number, since it is larger than the sum of its proper divisors (3990021).

49405757179 is a wasteful number, since it uses less digits than its factorization.

49405757179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990020.

The product of its (nonzero) digits is 11113200, while the sum is 58.

The spelling of 49405757179 in words is "forty-nine billion, four hundred five million, seven hundred fifty-seven thousand, one hundred seventy-nine".