1999276705 has 8 divisors (see below), whose sum is σ = 2399437800. Its totient is φ = 1599217536.

The previous prime is 1999276681. The next prime is 1999276709. The reversal of 1999276705 is 5076729991.

1999276705 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 24336 + 1999252369 = 156^2 + 44713^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1999276705 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1999276709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27811 + ... + 69079.

It is an arithmetic number, because the mean of its divisors is an integer number (299929725).

Almost surely, 2^1999276705 is an apocalyptic number.

It is an amenable number.

1999276705 is a deficient number, since it is larger than the sum of its proper divisors (400161095).

1999276705 is an equidigital number, since it uses as much as digits as its factorization.

1999276705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50963.

The product of its (nonzero) digits is 2143260, while the sum is 55.

The square root of 1999276705 is about 44713.2721347924. The cubic root of 1999276705 is about 1259.7691491493.

The spelling of 1999276705 in words is "one billion, nine hundred ninety-nine million, two hundred seventy-six thousand, seven hundred five".