21302009974 has 32 divisors (see below), whose sum is σ = 36836499456. Its totient is φ = 9049864320.

The previous prime is 21302009969. The next prime is 21302010049. The reversal of 21302009974 is 47990020312.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2415457 + ... + 2424259.

It is an arithmetic number, because the mean of its divisors is an integer number (1151140608).

Almost surely, 2^21302009974 is an apocalyptic number.

21302009974 is a deficient number, since it is larger than the sum of its proper divisors (15534489482).

21302009974 is a wasteful number, since it uses less digits than its factorization.

21302009974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10300.

The product of its (nonzero) digits is 27216, while the sum is 37.

The spelling of 21302009974 in words is "twenty-one billion, three hundred two million, nine thousand, nine hundred seventy-four".