49999847097249 has 99 divisors (see below), whose sum is σ = 87265130993427. Its totient is φ = 28564468131024.

The previous prime is 49999847097223. The next prime is 49999847097251. The reversal of 49999847097249 is 94279074899994.

It is a happy number.

The square root of 49999847097249 is 7071057.

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

49999847097249 is a `hidden beast` number, since 4 + 9 + 9 + 9 + 9 + 8 + 470 + 97 + 2 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22765351403025 + 27234495694224 = 4771305^2 + 5218668^2 .

It is not a de Polignac number, because 49999847097249 - 2⁹ = 49999847096737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49999847097269) by changing a digit.

It is a polite number, since it can be written in 98 ways as a sum of consecutive naturals, for example, 12027865879 + ... + 12027870035.

Almost surely, 2^{49999847097249} is an apocalyptic number.

49999847097249 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

49999847097249 is the 7071057-th square number.

49999847097249 is the 3535529-th centered octagonal number.

It is an amenable number.

49999847097249 is a deficient number, since it is larger than the sum of its proper divisors (37265283896178).

49999847097249 is an frugal number, since it uses more digits than its factorization.

49999847097249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8358 (or 4167 counting only the distinct ones).

The product of its (nonzero) digits is 26665583616, while the sum is 90.

The spelling of 49999847097249 in words is "forty-nine trillion, nine hundred ninety-nine billion, eight hundred forty-seven million, ninety-seven thousand, two hundred forty-nine".