650818745 has 8 divisors (see below), whose sum is σ = 781590600. Its totient is φ = 520249600.

The previous prime is 650818733. The next prime is 650818801. The reversal of 650818745 is 547818056.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 101525776 + 549292969 = 10076^2 + 23437^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 650818745 - 2¹⁸ = 650556601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 650818696 and 650818705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43520 + ... + 56529.

It is an arithmetic number, because the mean of its divisors is an integer number (97698825).

Almost surely, 2^650818745 is an apocalyptic number.

It is an amenable number.

650818745 is a deficient number, since it is larger than the sum of its proper divisors (130771855).

650818745 is a wasteful number, since it uses less digits than its factorization.

650818745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101355.

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 650818745 is about 25511.1494253003. The cubic root of 650818745 is about 866.6026598851.

The spelling of 650818745 in words is "six hundred fifty million, eight hundred eighteen thousand, seven hundred forty-five".