1945827653 has 8 divisors (see below), whose sum is σ = 2425967040. Its totient is φ = 1516229280.

The previous prime is 1945827641. The next prime is 1945827661. The reversal of 1945827653 is 3567285491.

It is a happy number.

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 1945827653 - 2¹⁰ = 1945826629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945827673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12635168 + ... + 12635321.

It is an arithmetic number, because the mean of its divisors is an integer number (303245880).

Almost surely, 2^1945827653 is an apocalyptic number.

It is an amenable number.

1945827653 is a deficient number, since it is larger than the sum of its proper divisors (480139387).

1945827653 is a wasteful number, since it uses less digits than its factorization.

1945827653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25270507.

The product of its digits is 1814400, while the sum is 50.

The square root of 1945827653 is about 44111.5365069049. The cubic root of 1945827653 is about 1248.4412897859.

The spelling of 1945827653 in words is "one billion, nine hundred forty-five million, eight hundred twenty-seven thousand, six hundred fifty-three".