1945000207549 has 24 divisors (see below), whose sum is σ = 2358254105088. Its totient is φ = 1569759549120.

The previous prime is 1945000207529. The next prime is 1945000207597. The reversal of 1945000207549 is 9457020005491.

It is not a de Polignac number, because 1945000207549 - 2²⁵ = 1944966653117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1945000207499 and 1945000207508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945000207529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2976534 + ... + 3570679.

It is an arithmetic number, because the mean of its divisors is an integer number (98260587712).

Almost surely, 2^{1945000207549} is an apocalyptic number.

It is an amenable number.

1945000207549 is a deficient number, since it is larger than the sum of its proper divisors (413253897539).

1945000207549 is an equidigital number, since it uses as much as digits as its factorization.

1945000207549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6547325 (or 6547288 counting only the distinct ones).

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

The spelling of 1945000207549 in words is "one trillion, nine hundred forty-five billion, two hundred seven thousand, five hundred forty-nine".