1263116690 has 16 divisors (see below), whose sum is σ = 2480302080. Its totient is φ = 459315120.

The previous prime is 1263116689. The next prime is 1263116741. The reversal of 1263116690 is 966113621.

It is a super-2 number, since 2×1263116690² = 3190927545113112200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1263116690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5741330 + ... + 5741549.

It is an arithmetic number, because the mean of its divisors is an integer number (155018880).

Almost surely, 2^1263116690 is an apocalyptic number.

1263116690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1263116690 is a deficient number, since it is larger than the sum of its proper divisors (1217185390).

1263116690 is a wasteful number, since it uses less digits than its factorization.

1263116690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11482897.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1263116690 is about 35540.3529808020. The cubic root of 1263116690 is about 1080.9721156986.

The spelling of 1263116690 in words is "one billion, two hundred sixty-three million, one hundred sixteen thousand, six hundred ninety".