8457816650 has 24 divisors (see below), whose sum is σ = 16274008620. Its totient is φ = 3266466560.

The previous prime is 8457816649. The next prime is 8457816671. The reversal of 8457816650 is 566187548.

It can be written as a sum of positive squares in 6 ways, for example, as 3449565289 + 5008251361 = 58733^2 + 70769^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2915039 + ... + 2917938.

Almost surely, 2^8457816650 is an apocalyptic number.

8457816650 is a deficient number, since it is larger than the sum of its proper divisors (7816191970).

8457816650 is a wasteful number, since it uses less digits than its factorization.

8457816650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5833018 (or 5833013 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

The square root of 8457816650 is about 91966.3886971757. The cubic root of 8457816650 is about 2037.4459137286.

The spelling of 8457816650 in words is "eight billion, four hundred fifty-seven million, eight hundred sixteen thousand, six hundred fifty".