1999068523 has 8 divisors (see below), whose sum is σ = 2060913888. Its totient is φ = 1937634624.

The previous prime is 1999068521. The next prime is 1999068541. The reversal of 1999068523 is 3258609991.

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 1999068523 - 2¹ = 1999068521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1999068521) 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, 92986 + ... + 112447.

It is an arithmetic number, because the mean of its divisors is an integer number (257614236).

Almost surely, 2^1999068523 is an apocalyptic number.

1999068523 is a deficient number, since it is larger than the sum of its proper divisors (61845365).

1999068523 is a wasteful number, since it uses less digits than its factorization.

1999068523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205733.

The product of its (nonzero) digits is 1049760, while the sum is 52.

The square root of 1999068523 is about 44710.9441076791. The cubic root of 1999068523 is about 1259.7254216079.

The spelling of 1999068523 in words is "one billion, nine hundred ninety-nine million, sixty-eight thousand, five hundred twenty-three".