49971897159 has 8 divisors (see below), whose sum is σ = 67288891632. Its totient is φ = 32984750400.

The previous prime is 49971897133. The next prime is 49971897161. The reversal of 49971897159 is 95179817994.

49971897159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49971897159 - 2¹² = 49971893063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49971897093 and 49971897102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49971897179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82461574 + ... + 82462179.

It is an arithmetic number, because the mean of its divisors is an integer number (8411111454).

Almost surely, 2^49971897159 is an apocalyptic number.

49971897159 is a deficient number, since it is larger than the sum of its proper divisors (17316994473).

49971897159 is a wasteful number, since it uses less digits than its factorization.

49971897159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164923857.

The product of its digits is 51438240, while the sum is 69.

The spelling of 49971897159 in words is "forty-nine billion, nine hundred seventy-one million, eight hundred ninety-seven thousand, one hundred fifty-nine".