1779375345 has 32 divisors (see below), whose sum is σ = 3113679744. Its totient is φ = 860544000.

The previous prime is 1779375341. The next prime is 1779375373. The reversal of 1779375345 is 5435739771.

It is a happy number.

It is not a de Polignac number, because 1779375345 - 2² = 1779375341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1779375341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52719 + ... + 79611.

It is an arithmetic number, because the mean of its divisors is an integer number (97302492).

Almost surely, 2^1779375345 is an apocalyptic number.

1779375345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1779375345 is a deficient number, since it is larger than the sum of its proper divisors (1334304399).

1779375345 is a wasteful number, since it uses less digits than its factorization.

1779375345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27313.

The product of its digits is 2778300, while the sum is 51.

The square root of 1779375345 is about 42182.6426981525. The cubic root of 1779375345 is about 1211.7764914503.

The spelling of 1779375345 in words is "one billion, seven hundred seventy-nine million, three hundred seventy-five thousand, three hundred forty-five".