1317763650 has 48 divisors (see below), whose sum is σ = 3734921664. Its totient is φ = 301202880.

The previous prime is 1317763649. The next prime is 1317763669. The reversal of 1317763650 is 563677131.

It is a super-2 number, since 2×1317763650² = 3473002074522645000, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1317763599 and 1317763608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 626457 + ... + 628556.

It is an arithmetic number, because the mean of its divisors is an integer number (77810868).

Almost surely, 2^1317763650 is an apocalyptic number.

1317763650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1317763650 is an abundant number, since it is smaller than the sum of its proper divisors (2417158014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1317763650 is a wasteful number, since it uses less digits than its factorization.

1317763650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255035 (or 1255030 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 1317763650 is about 36301.0144486349. The cubic root of 1317763650 is about 1096.3414680285.

The spelling of 1317763650 in words is "one billion, three hundred seventeen million, seven hundred sixty-three thousand, six hundred fifty".