1947006719947 has 2 divisors, whose sum is σ = 1947006719948. Its totient is φ = 1947006719946.

The previous prime is 1947006719921. The next prime is 1947006720077. The reversal of 1947006719947 is 7499176007491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1947006719947 - 2¹⁵ = 1947006687179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1947006719347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973503359973 + 973503359974.

It is an arithmetic number, because the mean of its divisors is an integer number (973503359974).

Almost surely, 2^{1947006719947} is an apocalyptic number.

1947006719947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1947006719947 is an equidigital number, since it uses as much as digits as its factorization.

1947006719947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24004512, while the sum is 64.

The spelling of 1947006719947 in words is "one trillion, nine hundred forty-seven billion, six million, seven hundred nineteen thousand, nine hundred forty-seven".