1946547557383 has 16 divisors (see below), whose sum is σ = 2298344832000. Its totient is φ = 1625258083680.

The previous prime is 1946547557371. The next prime is 1946547557447. The reversal of 1946547557383 is 3837557456491.

It is a de Polignac number, because none of the positive numbers 2^k-1946547557383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1946547557083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34173103 + ... + 34230016.

It is an arithmetic number, because the mean of its divisors is an integer number (143646552000).

Almost surely, 2^{1946547557383} is an apocalyptic number.

1946547557383 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1946547557383 is a deficient number, since it is larger than the sum of its proper divisors (351797274617).

1946547557383 is a wasteful number, since it uses less digits than its factorization.

1946547557383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68403342.

The product of its digits is 381024000, while the sum is 67.

The spelling of 1946547557383 in words is "one trillion, nine hundred forty-six billion, five hundred forty-seven million, five hundred fifty-seven thousand, three hundred eighty-three".