30630705720 has 64 divisors (see below), whose sum is σ = 92455931520. Its totient is φ = 8118071424.

The previous prime is 30630705713. The next prime is 30630705727. The reversal of 30630705720 is 2750703603.

It is an interprime number because it is at equal distance from previous prime (30630705713) and next prime (30630705727).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30630705727) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 763434 + ... + 802553.

It is an arithmetic number, because the mean of its divisors is an integer number (1444623930).

Almost surely, 2^30630705720 is an apocalyptic number.

30630705720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30630705720 is an abundant number, since it is smaller than the sum of its proper divisors (61825225800).

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

30630705720 is a wasteful number, since it uses less digits than its factorization.

30630705720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566164 (or 1566160 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 33.

The spelling of 30630705720 in words is "thirty billion, six hundred thirty million, seven hundred five thousand, seven hundred twenty".