49847147883989 has 2 divisors, whose sum is σ = 49847147883990. Its totient is φ = 49847147883988.

The previous prime is 49847147883887. The next prime is 49847147884063. The reversal of 49847147883989 is 98938874174894.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46479097083364 + 3368050800625 = 6817558^2 + 1835225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49847147883989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49847147883389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24923573941994 + 24923573941995.

It is an arithmetic number, because the mean of its divisors is an integer number (24923573941995).

Almost surely, 2^{49847147883989} is an apocalyptic number.

It is an amenable number.

49847147883989 is a deficient number, since it is larger than the sum of its proper divisors (1).

49847147883989 is an equidigital number, since it uses as much as digits as its factorization.

49847147883989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28092137472, while the sum is 89.

The spelling of 49847147883989 in words is "forty-nine trillion, eight hundred forty-seven billion, one hundred forty-seven million, eight hundred eighty-three thousand, nine hundred eighty-nine".