1880323913 has 18 divisors (see below), whose sum is σ = 2158528554. Its totient is φ = 1631565312.

The previous prime is 1880323903. The next prime is 1880323933. The reversal of 1880323913 is 3193230881.

It can be written as a sum of positive squares in 9 ways, for example, as 76877824 + 1803446089 = 8768^2 + 42467^2 .

It is not a de Polignac number, because 1880323913 - 2⁴ = 1880323897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1880323903) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2323853 + ... + 2324661.

It is an arithmetic number, because the mean of its divisors is an integer number (119918253).

Almost surely, 2^1880323913 is an apocalyptic number.

1880323913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1880323913 is a deficient number, since it is larger than the sum of its proper divisors (278204641).

1880323913 is an frugal number, since it uses more digits than its factorization.

1880323913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1880323913 is about 43362.7018646209. The cubic root of 1880323913 is about 1234.2720363643.

The spelling of 1880323913 in words is "one billion, eight hundred eighty million, three hundred twenty-three thousand, nine hundred thirteen".