20502322734 has 32 divisors (see below), whose sum is σ = 43218969120. Its totient is φ = 6473946752.

The previous prime is 20502322699. The next prime is 20502322759. The reversal of 20502322734 is 43722320502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1102377 + ... + 1120820.

It is an arithmetic number, because the mean of its divisors is an integer number (1350592785).

Almost surely, 2^20502322734 is an apocalyptic number.

20502322734 is an abundant number, since it is smaller than the sum of its proper divisors (22716646386).

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

20502322734 is a wasteful number, since it uses less digits than its factorization.

20502322734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223284.

The product of its (nonzero) digits is 20160, while the sum is 30.

The spelling of 20502322734 in words is "twenty billion, five hundred two million, three hundred twenty-two thousand, seven hundred thirty-four".