1820461763 has 16 divisors (see below), whose sum is σ = 2020208640. Its totient is φ = 1633478400.

The previous prime is 1820461739. The next prime is 1820461771. The reversal of 1820461763 is 3671640281.

It is a cyclic number.

It is not a de Polignac number, because 1820461763 - 2²² = 1816267459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1820461163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5198 + ... + 60563.

It is an arithmetic number, because the mean of its divisors is an integer number (126263040).

Almost surely, 2^1820461763 is an apocalyptic number.

1820461763 is a deficient number, since it is larger than the sum of its proper divisors (199746877).

1820461763 is a wasteful number, since it uses less digits than its factorization.

1820461763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65858.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1820461763 is about 42666.8696180069. The cubic root of 1820461763 is about 1221.0323974086.

The spelling of 1820461763 in words is "one billion, eight hundred twenty million, four hundred sixty-one thousand, seven hundred sixty-three".