20502500434 has 16 divisors (see below), whose sum is σ = 33236465472. Its totient is φ = 9429252048.

The previous prime is 20502500383. The next prime is 20502500453. The reversal of 20502500434 is 43400520502.

20502500434 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 20502500399 and 20502500408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1385854 + ... + 1400569.

It is an arithmetic number, because the mean of its divisors is an integer number (2077279092).

Almost surely, 2^20502500434 is an apocalyptic number.

20502500434 is a deficient number, since it is larger than the sum of its proper divisors (12733965038).

20502500434 is a wasteful number, since it uses less digits than its factorization.

20502500434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786721.

The product of its (nonzero) digits is 4800, while the sum is 25.

The spelling of 20502500434 in words is "twenty billion, five hundred two million, five hundred thousand, four hundred thirty-four".