1539684072947 has 2 divisors, whose sum is σ = 1539684072948. Its totient is φ = 1539684072946.

The previous prime is 1539684072937. The next prime is 1539684072977. The reversal of 1539684072947 is 7492704869351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1539684072947 - 2²⁰ = 1539683024371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1539684072937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769842036473 + 769842036474.

It is an arithmetic number, because the mean of its divisors is an integer number (769842036474).

It is a 1-persistent number, because it is pandigital, but 2⋅1539684072947 = 3079368145894 is not.

Almost surely, 2^{1539684072947} is an apocalyptic number.

1539684072947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1539684072947 is an equidigital number, since it uses as much as digits as its factorization.

1539684072947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 1539684072947 in words is "one trillion, five hundred thirty-nine billion, six hundred eighty-four million, seventy-two thousand, nine hundred forty-seven".