1945127977105 has 8 divisors (see below), whose sum is σ = 2334161693952. Its totient is φ = 1556096967408.

The previous prime is 1945127977063. The next prime is 1945127977153. The reversal of 1945127977105 is 5017797215491.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1945127977105 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1945127977105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1600672 + ... + 2540158.

It is an arithmetic number, because the mean of its divisors is an integer number (291770211744).

Almost surely, 2^{1945127977105} is an apocalyptic number.

It is an amenable number.

1945127977105 is a deficient number, since it is larger than the sum of its proper divisors (389033716847).

1945127977105 is an equidigital number, since it uses as much as digits as its factorization.

1945127977105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353575.

The product of its (nonzero) digits is 5556600, while the sum is 58.

The spelling of 1945127977105 in words is "one trillion, nine hundred forty-five billion, one hundred twenty-seven million, nine hundred seventy-seven thousand, one hundred five".