1779392345 has 16 divisors (see below), whose sum is σ = 2213500608. Its totient is φ = 1372080960.

The previous prime is 1779392327. The next prime is 1779392369. The reversal of 1779392345 is 5432939771.

It is not a de Polignac number, because 1779392345 - 2¹⁰ = 1779391321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1779392293 and 1779392302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25151 + ... + 64740.

It is an arithmetic number, because the mean of its divisors is an integer number (138343788).

Almost surely, 2^1779392345 is an apocalyptic number.

It is an amenable number.

1779392345 is a deficient number, since it is larger than the sum of its proper divisors (434108263).

1779392345 is a wasteful number, since it uses less digits than its factorization.

1779392345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90040.

The product of its digits is 1428840, while the sum is 50.

The square root of 1779392345 is about 42182.8442023532. The cubic root of 1779392345 is about 1211.7803505077.

The spelling of 1779392345 in words is "one billion, seven hundred seventy-nine million, three hundred ninety-two thousand, three hundred forty-five".