49847147883887 has 2 divisors, whose sum is σ = 49847147883888. Its totient is φ = 49847147883886.

The previous prime is 49847147883821. The next prime is 49847147883989. The reversal of 49847147883887 is 78838874174894.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49847147883887 - 2³⁰ = 49846074142063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49847147883799 and 49847147883808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49847147883817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24923573941943 + 24923573941944.

It is an arithmetic number, because the mean of its divisors is an integer number (24923573941944).

Almost surely, 2^{49847147883887} is an apocalyptic number.

49847147883887 is a deficient number, since it is larger than the sum of its proper divisors (1).

49847147883887 is an equidigital number, since it uses as much as digits as its factorization.

49847147883887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19421724672, while the sum is 86.

The spelling of 49847147883887 in words is "forty-nine trillion, eight hundred forty-seven billion, one hundred forty-seven million, eight hundred eighty-three thousand, eight hundred eighty-seven".