1945305621127 has 16 divisors (see below), whose sum is σ = 2129995699200. Its totient is φ = 1761934451200.

The previous prime is 1945305621107. The next prime is 1945305621169. The reversal of 1945305621127 is 7211265035491.

It is a de Polignac number, because none of the positive numbers 2^k-1945305621127 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 (1945305621107) 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 15 ways as a sum of consecutive naturals, for example, 3085002 + ... + 3661672.

It is an arithmetic number, because the mean of its divisors is an integer number (133124731200).

Almost surely, 2^{1945305621127} is an apocalyptic number.

1945305621127 is a deficient number, since it is larger than the sum of its proper divisors (184690078073).

1945305621127 is a wasteful number, since it uses less digits than its factorization.

1945305621127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577814.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 1945305621127 in words is "one trillion, nine hundred forty-five billion, three hundred five million, six hundred twenty-one thousand, one hundred twenty-seven".