49123771017 has 4 divisors (see below), whose sum is σ = 65498361360. Its totient is φ = 32749180676.

The previous prime is 49123771009. The next prime is 49123771043. The reversal of 49123771017 is 71017732194.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49123771017 - 2³ = 49123771009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49123771017.

It is not an unprimeable number, because it can be changed into a prime (49123731017) 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, 8187295167 + ... + 8187295172.

It is an arithmetic number, because the mean of its divisors is an integer number (16374590340).

Almost surely, 2^49123771017 is an apocalyptic number.

It is an amenable number.

49123771017 is a deficient number, since it is larger than the sum of its proper divisors (16374590343).

49123771017 is a wasteful number, since it uses less digits than its factorization.

49123771017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16374590342.

The product of its (nonzero) digits is 74088, while the sum is 42.

The spelling of 49123771017 in words is "forty-nine billion, one hundred twenty-three million, seven hundred seventy-one thousand, seventeen".