49189863317 has 4 divisors (see below), whose sum is σ = 56216986656. Its totient is φ = 42162739980.

The previous prime is 49189863313. The next prime is 49189863319. The reversal of 49189863317 is 71336898194.

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 49189863317 - 2² = 49189863313 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 (49189863313) 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, 3513561659 + ... + 3513561672.

It is an arithmetic number, because the mean of its divisors is an integer number (14054246664).

Almost surely, 2^49189863317 is an apocalyptic number.

It is an amenable number.

49189863317 is a deficient number, since it is larger than the sum of its proper divisors (7027123339).

49189863317 is an equidigital number, since it uses as much as digits as its factorization.

49189863317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027123338.

The product of its digits is 7838208, while the sum is 59.

The spelling of 49189863317 in words is "forty-nine billion, one hundred eighty-nine million, eight hundred sixty-three thousand, three hundred seventeen".