1063681699 has 4 divisors (see below), whose sum is σ = 1063757800. Its totient is φ = 1063605600.

The previous prime is 1063681681. The next prime is 1063681711. The reversal of 1063681699 is 9961863601.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1063681699 - 2¹⁵ = 1063648931 is a prime.

It is a super-2 number, since 2×1063681699² = 2262837513575053202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1063681649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10374 + ... + 47275.

It is an arithmetic number, because the mean of its divisors is an integer number (265939450).

Almost surely, 2^1063681699 is an apocalyptic number.

1063681699 is a deficient number, since it is larger than the sum of its proper divisors (76101).

1063681699 is an equidigital number, since it uses as much as digits as its factorization.

1063681699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76100.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 1063681699 is about 32614.1334240234. The cubic root of 1063681699 is about 1020.7919323988.

The spelling of 1063681699 in words is "one billion, sixty-three million, six hundred eighty-one thousand, six hundred ninety-nine".