21488046403430 has 32 divisors (see below), whose sum is σ = 38749869262080. Its totient is φ = 8579369691520.

The previous prime is 21488046403393. The next prime is 21488046403513. The reversal of 21488046403430 is 3430464088412.

It is a super-2 number, since 2×21488046403430² (a number of 27 digits) contains 22 as substring.

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, 10853387 + ... + 12679593.

It is an arithmetic number, because the mean of its divisors is an integer number (1210933414440).

Almost surely, 2^{21488046403430} is an apocalyptic number.

21488046403430 is a deficient number, since it is larger than the sum of its proper divisors (17261822858650).

21488046403430 is a wasteful number, since it uses less digits than its factorization.

21488046403430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828384.

The product of its (nonzero) digits is 1769472, while the sum is 47.

The spelling of 21488046403430 in words is "twenty-one trillion, four hundred eighty-eight billion, forty-six million, four hundred three thousand, four hundred thirty".