21007112759630 has 32 divisors (see below), whose sum is σ = 38118170640384. Its totient is φ = 8335012111776.

The previous prime is 21007112759587. The next prime is 21007112759683. The reversal of 21007112759630 is 3695721170012.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4700699 + ... + 8006921.

It is an arithmetic number, because the mean of its divisors is an integer number (1191192832512).

Almost surely, 2^{21007112759630} is an apocalyptic number.

21007112759630 is a deficient number, since it is larger than the sum of its proper divisors (17111057880754).

21007112759630 is a wasteful number, since it uses less digits than its factorization.

21007112759630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311360.

The product of its (nonzero) digits is 158760, while the sum is 44.

The spelling of 21007112759630 in words is "twenty-one trillion, seven billion, one hundred twelve million, seven hundred fifty-nine thousand, six hundred thirty".