20424532670 has 32 divisors (see below), whose sum is σ = 38042287200. Its totient is φ = 7885938816.

The previous prime is 20424532669. The next prime is 20424532693. The reversal of 20424532670 is 7623542402.

It is a self number, because there is not a number n which added to its sum of digits gives 20424532670.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1416437 + ... + 1430783.

It is an arithmetic number, because the mean of its divisors is an integer number (1188821475).

Almost surely, 2^20424532670 is an apocalyptic number.

20424532670 is a deficient number, since it is larger than the sum of its proper divisors (17617754530).

20424532670 is a wasteful number, since it uses less digits than its factorization.

20424532670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19292.

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 20424532670 in words is "twenty billion, four hundred twenty-four million, five hundred thirty-two thousand, six hundred seventy".