49949937895729 has 3 divisors (see below), whose sum is σ = 49949944963257. Its totient is φ = 49949930828202.

The previous prime is 49949937895723. The next prime is 49949937895787. The reversal of 49949937895729 is 92759873994994.

The square root of 49949937895729 is 7067527.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 49949937895729 - 2³ = 49949937895721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49949937895721) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3533764 + ... + 10601290.

It is an arithmetic number, because the mean of its divisors is an integer number (16649981654419).

Almost surely, 2^{49949937895729} is an apocalyptic number.

49949937895729 is the 7067527-th square number.

49949937895729 is the 3533764-th centered octagonal number.

It is an amenable number.

49949937895729 is a deficient number, since it is larger than the sum of its proper divisors (7067528).

49949937895729 is an frugal number, since it uses more digits than its factorization.

49949937895729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14135054 (or 7067527 counting only the distinct ones).

The product of its digits is 99995938560, while the sum is 94.

The spelling of 49949937895729 in words is "forty-nine trillion, nine hundred forty-nine billion, nine hundred thirty-seven million, eight hundred ninety-five thousand, seven hundred twenty-nine".