1650868474 has 4 divisors (see below), whose sum is σ = 2476302714. Its totient is φ = 825434236.

The previous prime is 1650868469. The next prime is 1650868481. The reversal of 1650868474 is 4748680561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1270423449 + 380445025 = 35643^2 + 19505^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412717117 + ... + 412717120.

Almost surely, 2^1650868474 is an apocalyptic number.

1650868474 is a deficient number, since it is larger than the sum of its proper divisors (825434240).

1650868474 is an equidigital number, since it uses as much as digits as its factorization.

1650868474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825434239.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The square root of 1650868474 is about 40630.8807928157. The cubic root of 1650868474 is about 1181.8730365240.

The spelling of 1650868474 in words is "one billion, six hundred fifty million, eight hundred sixty-eight thousand, four hundred seventy-four".