49395161509 has 4 divisors (see below), whose sum is σ = 49398446304. Its totient is φ = 49391876716.

The previous prime is 49395161489. The next prime is 49395161521. The reversal of 49395161509 is 90516159394.

It is a happy number.

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 49395161509 - 2²⁹ = 48858290597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49395161549) 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, 1619737 + ... + 1649950.

It is an arithmetic number, because the mean of its divisors is an integer number (12349611576).

Almost surely, 2^49395161509 is an apocalyptic number.

It is an amenable number.

49395161509 is a deficient number, since it is larger than the sum of its proper divisors (3284795).

49395161509 is a wasteful number, since it uses less digits than its factorization.

49395161509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284794.

The product of its (nonzero) digits is 1312200, while the sum is 52.

The spelling of 49395161509 in words is "forty-nine billion, three hundred ninety-five million, one hundred sixty-one thousand, five hundred nine".