49171489398 has 32 divisors (see below), whose sum is σ = 109293650400. Its totient is φ = 16386945408.

The previous prime is 49171489391. The next prime is 49171489399. The reversal of 49171489398 is 89398417194.

49171489398 is a `hidden beast` number, since 491 + 71 + 48 + 9 + 39 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49171489391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159090 + ... + 351642.

It is an arithmetic number, because the mean of its divisors is an integer number (3415426575).

Almost surely, 2^49171489398 is an apocalyptic number.

49171489398 is an abundant number, since it is smaller than the sum of its proper divisors (60122161002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49171489398 is a wasteful number, since it uses less digits than its factorization.

49171489398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197293 (or 197287 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 63.

The spelling of 49171489398 in words is "forty-nine billion, one hundred seventy-one million, four hundred eighty-nine thousand, three hundred ninety-eight".