20624650242 has 32 divisors (see below), whose sum is σ = 47388893184. Its totient is φ = 5861902800.

The previous prime is 20624650213. The next prime is 20624650259. The reversal of 20624650242 is 24205642602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1277484 + ... + 1293527.

It is an arithmetic number, because the mean of its divisors is an integer number (1480902912).

Almost surely, 2^20624650242 is an apocalyptic number.

20624650242 is an abundant number, since it is smaller than the sum of its proper divisors (26764242942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20624650242 is a wasteful number, since it uses less digits than its factorization.

20624650242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571214.

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 20624650242 in words is "twenty billion, six hundred twenty-four million, six hundred fifty thousand, two hundred forty-two".