1630504863 has 64 divisors (see below), whose sum is σ = 2688430080. Its totient is φ = 970164864.

The previous prime is 1630504819. The next prime is 1630504927. The reversal of 1630504863 is 3684050361.

It is not a de Polignac number, because 1630504863 - 2⁸ = 1630504607 is a prime.

It is a super-2 number, since 2×1630504863² = 5317092216533297538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630504163) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2895820 + ... + 2896382.

It is an arithmetic number, because the mean of its divisors is an integer number (42006720).

Almost surely, 2^1630504863 is an apocalyptic number.

1630504863 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1630504863 is a deficient number, since it is larger than the sum of its proper divisors (1057925217).

1630504863 is a wasteful number, since it uses less digits than its factorization.

1630504863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1630504863 is about 40379.5104353681. The cubic root of 1630504863 is about 1176.9934142833.

The spelling of 1630504863 in words is "one billion, six hundred thirty million, five hundred four thousand, eight hundred sixty-three".