21434503046 has 16 divisors (see below), whose sum is σ = 35122913280. Its totient is φ = 9729547080.

The previous prime is 21434503019. The next prime is 21434503061. The reversal of 21434503046 is 64030543412.

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, 654086 + ... + 686073.

It is an arithmetic number, because the mean of its divisors is an integer number (2195182080).

Almost surely, 2^21434503046 is an apocalyptic number.

21434503046 is a deficient number, since it is larger than the sum of its proper divisors (13688410234).

21434503046 is a wasteful number, since it uses less digits than its factorization.

21434503046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340899.

The product of its (nonzero) digits is 34560, while the sum is 32.

The spelling of 21434503046 in words is "twenty-one billion, four hundred thirty-four million, five hundred three thousand, forty-six".