3847786877479 has 2 divisors, whose sum is σ = 3847786877480. Its totient is φ = 3847786877478.

The previous prime is 3847786877423. The next prime is 3847786877491. The reversal of 3847786877479 is 9747786877483.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3847786877479 is a prime.

It is a super-4 number, since 4×3847786877479⁴ (a number of 51 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3847786877396 and 3847786877405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3847786874479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1923893438739 + 1923893438740.

It is an arithmetic number, because the mean of its divisors is an integer number (1923893438740).

Almost surely, 2^{3847786877479} is an apocalyptic number.

3847786877479 is a deficient number, since it is larger than the sum of its proper divisors (1).

3847786877479 is an equidigital number, since it uses as much as digits as its factorization.

3847786877479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22304636928, while the sum is 85.

The spelling of 3847786877479 in words is "three trillion, eight hundred forty-seven billion, seven hundred eighty-six million, eight hundred seventy-seven thousand, four hundred seventy-nine".