21730003415 has 8 divisors (see below), whose sum is σ = 27609886800. Its totient is φ = 16361414272.

The previous prime is 21730003409. The next prime is 21730003423. The reversal of 21730003415 is 51430003712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21730003415 - 2⁸ = 21730003159 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 127823465 + ... + 127823634.

It is an arithmetic number, because the mean of its divisors is an integer number (3451235850).

Almost surely, 2^21730003415 is an apocalyptic number.

21730003415 is a deficient number, since it is larger than the sum of its proper divisors (5879883385).

21730003415 is a wasteful number, since it uses less digits than its factorization.

21730003415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255647121.

The product of its (nonzero) digits is 2520, while the sum is 26.

The spelling of 21730003415 in words is "twenty-one billion, seven hundred thirty million, three thousand, four hundred fifteen".