1364664650 has 24 divisors (see below), whose sum is σ = 2545839660. Its totient is φ = 544239360.

The previous prime is 1364664583. The next prime is 1364664667. The reversal of 1364664650 is 564664631.

It can be written as a sum of positive squares in 6 ways, for example, as 717114841 + 647549809 = 26779^2 + 25447^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1364664598 and 1364664607.

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 11 ways as a sum of consecutive naturals, for example, 23645 + ... + 57344.

Almost surely, 2^1364664650 is an apocalyptic number.

1364664650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1364664650 is a deficient number, since it is larger than the sum of its proper divisors (1181175010).

1364664650 is a wasteful number, since it uses less digits than its factorization.

1364664650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81338 (or 81333 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 1364664650 is about 36941.3677332066. The cubic root of 1364664650 is about 1109.1969003520.

The spelling of 1364664650 in words is "one billion, three hundred sixty-four million, six hundred sixty-four thousand, six hundred fifty".