1945626863 has 4 divisors (see below), whose sum is σ = 2060075520. Its totient is φ = 1831178208.

The previous prime is 1945626841. The next prime is 1945626871. The reversal of 1945626863 is 3686265491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3686265491 = 359 ⋅10268149.

It is a cyclic number.

It is not a de Polignac number, because 1945626863 - 2¹⁰ = 1945625839 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 (1945626883) 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 3 ways as a sum of consecutive naturals, for example, 57224303 + ... + 57224336.

It is an arithmetic number, because the mean of its divisors is an integer number (515018880).

Almost surely, 2^1945626863 is an apocalyptic number.

1945626863 is a deficient number, since it is larger than the sum of its proper divisors (114448657).

1945626863 is a wasteful number, since it uses less digits than its factorization.

1945626863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114448656.

The product of its digits is 1866240, while the sum is 50.

The square root of 1945626863 is about 44109.2605129580. The cubic root of 1945626863 is about 1248.3983460803.

The spelling of 1945626863 in words is "one billion, nine hundred forty-five million, six hundred twenty-six thousand, eight hundred sixty-three".