945491779725 has 12 divisors (see below), whose sum is σ = 1563213075936. Its totient is φ = 504262282480.

The previous prime is 945491779717. The next prime is 945491779741. The reversal of 945491779725 is 527977194549.

It is not a de Polignac number, because 945491779725 - 2³ = 945491779717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 945491779725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6303278457 + ... + 6303278606.

It is an arithmetic number, because the mean of its divisors is an integer number (130267756328).

Almost surely, 2^945491779725 is an apocalyptic number.

It is an amenable number.

945491779725 is a deficient number, since it is larger than the sum of its proper divisors (617721296211).

945491779725 is a wasteful number, since it uses less digits than its factorization.

945491779725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12606557076 (or 12606557071 counting only the distinct ones).

The product of its digits is 200037600, while the sum is 69.

The spelling of 945491779725 in words is "nine hundred forty-five billion, four hundred ninety-one million, seven hundred seventy-nine thousand, seven hundred twenty-five".