1965425773 has 8 divisors (see below), whose sum is σ = 1980576000. Its totient is φ = 1950301968.

The previous prime is 1965425713. The next prime is 1965425779. The reversal of 1965425773 is 3775245691.

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 1965425773 - 2²¹ = 1963328621 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 (1965425779) 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, 158368 + ... + 170326.

It is an arithmetic number, because the mean of its divisors is an integer number (247572000).

Almost surely, 2^1965425773 is an apocalyptic number.

It is an amenable number.

1965425773 is a deficient number, since it is larger than the sum of its proper divisors (15150227).

1965425773 is a wasteful number, since it uses less digits than its factorization.

1965425773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13211.

The product of its digits is 1587600, while the sum is 49.

The square root of 1965425773 is about 44333.1227526327. The cubic root of 1965425773 is about 1252.6186751083.

The spelling of 1965425773 in words is "one billion, nine hundred sixty-five million, four hundred twenty-five thousand, seven hundred seventy-three".