49172009168 has 20 divisors (see below), whose sum is σ = 95275897860. Its totient is φ = 24584680704.

The previous prime is 49172009119. The next prime is 49172009197. The reversal of 49172009168 is 86190027194.

It can be written as a sum of positive squares in 2 ways, for example, as 33530004544 + 15642004624 = 183112^2 + 125068^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268988 + ... + 413156.

It is an arithmetic number, because the mean of its divisors is an integer number (4763794893).

Almost surely, 2^49172009168 is an apocalyptic number.

It is an amenable number.

49172009168 is a deficient number, since it is larger than the sum of its proper divisors (46103888692).

49172009168 is a wasteful number, since it uses less digits than its factorization.

49172009168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165494 (or 165488 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 49172009168 in words is "forty-nine billion, one hundred seventy-two million, nine thousand, one hundred sixty-eight".