78971471443 has 2 divisors, whose sum is σ = 78971471444. Its totient is φ = 78971471442.

The previous prime is 78971471429. The next prime is 78971471483. The reversal of 78971471443 is 34417417987.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78971471443 is a prime.

It is not a weakly prime, because it can be changed into another prime (78971471483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39485735721 + 39485735722.

It is an arithmetic number, because the mean of its divisors is an integer number (39485735722).

Almost surely, 2^78971471443 is an apocalyptic number.

78971471443 is a deficient number, since it is larger than the sum of its proper divisors (1).

78971471443 is an equidigital number, since it uses as much as digits as its factorization.

78971471443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4741632, while the sum is 55.

The spelling of 78971471443 in words is "seventy-eight billion, nine hundred seventy-one million, four hundred seventy-one thousand, four hundred forty-three".