1772842745 has 8 divisors (see below), whose sum is σ = 2127806016. Its totient is φ = 1418011056.

The previous prime is 1772842667. The next prime is 1772842801. The reversal of 1772842745 is 5472482771.

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 1772842745 - 2¹² = 1772838649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1772842745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317 + ... + 59546.

It is an arithmetic number, because the mean of its divisors is an integer number (265975752).

Almost surely, 2^1772842745 is an apocalyptic number.

It is an amenable number.

1772842745 is a deficient number, since it is larger than the sum of its proper divisors (354963271).

1772842745 is an equidigital number, since it uses as much as digits as its factorization.

1772842745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65791.

The product of its digits is 878080, while the sum is 47.

The square root of 1772842745 is about 42105.1391756398. The cubic root of 1772842745 is about 1210.2917460112.

The spelling of 1772842745 in words is "one billion, seven hundred seventy-two million, eight hundred forty-two thousand, seven hundred forty-five".