630804689040 has 40 divisors (see below), whose sum is σ = 1955494536768. Its totient is φ = 168214583680.

The previous prime is 630804688973. The next prime is 630804689051. The reversal of 630804689040 is 40986408036.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×630804689040² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314176196 + ... + 1314176675.

Almost surely, 2^630804689040 is an apocalyptic number.

630804689040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

630804689040 is an abundant number, since it is smaller than the sum of its proper divisors (1324689847728).

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

630804689040 is a wasteful number, since it uses less digits than its factorization.

630804689040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628352887 (or 2628352881 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 630804689040 in words is "six hundred thirty billion, eight hundred four million, six hundred eighty-nine thousand, forty".