49426569917 has 4 divisors (see below), whose sum is σ = 50762423196. Its totient is φ = 48090716640.

The previous prime is 49426569901. The next prime is 49426569919. The reversal of 49426569917 is 71996562494.

49426569917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 33704920921 + 15721648996 = 183589^2 + 125386^2 .

It is a cyclic number.

It is not a de Polignac number, because 49426569917 - 2⁴ = 49426569901 is a prime.

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 49426569917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49426569919) 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, 667926584 + ... + 667926657.

It is an arithmetic number, because the mean of its divisors is an integer number (12690605799).

Almost surely, 2^49426569917 is an apocalyptic number.

It is an amenable number.

49426569917 is a deficient number, since it is larger than the sum of its proper divisors (1335853279).

49426569917 is a wasteful number, since it uses less digits than its factorization.

49426569917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335853278.

The product of its digits is 29393280, while the sum is 62.

The spelling of 49426569917 in words is "forty-nine billion, four hundred twenty-six million, five hundred sixty-nine thousand, nine hundred seventeen".