1846780650 has 216 divisors, whose sum is σ = 5875522380. Its totient is φ = 413107200.

The previous prime is 1846780643. The next prime is 1846780679. The reversal of 1846780650 is 560876481.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 333026001 + 1513754649 = 18249^2 + 38907^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1846780596 and 1846780605.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 706546 + ... + 709154.

Almost surely, 2^1846780650 is an apocalyptic number.

1846780650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1846780650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2937761190).

1846780650 is an abundant number, since it is smaller than the sum of its proper divisors (4028741730).

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

1846780650 is a wasteful number, since it uses less digits than its factorization.

1846780650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662 (or 2643 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 1846780650 is about 42974.1858561625. The cubic root of 1846780650 is about 1226.8885267261. Note that the first 3 decimals are identical.

The spelling of 1846780650 in words is "one billion, eight hundred forty-six million, seven hundred eighty thousand, six hundred fifty".