21420524314 has 16 divisors (see below), whose sum is σ = 38880952128. Its totient is φ = 8640211392.

The previous prime is 21420524309. The next prime is 21420524329. The reversal of 21420524314 is 41342502412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45000864 + ... + 45001339.

It is an arithmetic number, because the mean of its divisors is an integer number (2430059508).

Almost surely, 2^21420524314 is an apocalyptic number.

21420524314 is a deficient number, since it is larger than the sum of its proper divisors (17460427814).

21420524314 is a wasteful number, since it uses less digits than its factorization.

21420524314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90002229.

The product of its (nonzero) digits is 7680, while the sum is 28.

The spelling of 21420524314 in words is "twenty-one billion, four hundred twenty million, five hundred twenty-four thousand, three hundred fourteen".