49847147883389 has 2 divisors, whose sum is σ = 49847147883390. Its totient is φ = 49847147883388.

The previous prime is 49847147883367. The next prime is 49847147883391. The reversal of 49847147883389 is 98338874174894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36658992480889 + 13188155402500 = 6054667^2 + 3631550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49847147883389 is a prime.

Together with 49847147883391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49847147883989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24923573941694 + 24923573941695.

It is an arithmetic number, because the mean of its divisors is an integer number (24923573941695).

Almost surely, 2^{49847147883389} is an apocalyptic number.

It is an amenable number.

49847147883389 is a deficient number, since it is larger than the sum of its proper divisors (1).

49847147883389 is an equidigital number, since it uses as much as digits as its factorization.

49847147883389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9364045824, while the sum is 83.

The spelling of 49847147883389 in words is "forty-nine trillion, eight hundred forty-seven billion, one hundred forty-seven million, eight hundred eighty-three thousand, three hundred eighty-nine".