1671234428947 has 8 divisors (see below), whose sum is σ = 1683630486720. Its totient is φ = 1658843697000.

The previous prime is 1671234428881. The next prime is 1671234428957. The reversal of 1671234428947 is 7498244321761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1671234428947 - 2¹⁵ = 1671234396179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1671234428891 and 1671234428900.

It is not an unprimeable number, because it can be changed into a prime (1671234428957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700429 + ... + 1957822.

It is an arithmetic number, because the mean of its divisors is an integer number (210453810840).

Almost surely, 2^{1671234428947} is an apocalyptic number.

1671234428947 is a deficient number, since it is larger than the sum of its proper divisors (12396057773).

1671234428947 is a wasteful number, since it uses less digits than its factorization.

1671234428947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662913.

The product of its digits is 16257024, while the sum is 58.

The spelling of 1671234428947 in words is "one trillion, six hundred seventy-one billion, two hundred thirty-four million, four hundred twenty-eight thousand, nine hundred forty-seven".