10021607730 has 48 divisors (see below), whose sum is σ = 26062732800. Its totient is φ = 2671756704.

The previous prime is 10021607699. The next prime is 10021607753. The reversal of 10021607730 is 3770612001.

10021607730 is a `hidden beast` number, since 1 + 0 + 0 + 21 + 607 + 7 + 30 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10021607694 and 10021607703.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 420309 + ... + 443511.

It is an arithmetic number, because the mean of its divisors is an integer number (542973600).

Almost surely, 2^10021607730 is an apocalyptic number.

10021607730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10021607730 is an abundant number, since it is smaller than the sum of its proper divisors (16041125070).

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

10021607730 is a wasteful number, since it uses less digits than its factorization.

10021607730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28015 (or 28012 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The spelling of 10021607730 in words is "ten billion, twenty-one million, six hundred seven thousand, seven hundred thirty".