20534724276 has 48 divisors (see below), whose sum is σ = 53682928320. Its totient is φ = 6054462720.

The previous prime is 20534724257. The next prime is 20534724283. The reversal of 20534724276 is 67242743502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2097361 + ... + 2107128.

It is an arithmetic number, because the mean of its divisors is an integer number (1118394340).

Almost surely, 2^20534724276 is an apocalyptic number.

It is an amenable number.

20534724276 is an abundant number, since it is smaller than the sum of its proper divisors (33148204044).

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

20534724276 is a wasteful number, since it uses less digits than its factorization.

20534724276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204544 (or 4204542 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 42.

It can be divided in two parts, 20534 and 724276, that added together give a triangular number (744810 = T₁₂₂₀).

The spelling of 20534724276 in words is "twenty billion, five hundred thirty-four million, seven hundred twenty-four thousand, two hundred seventy-six".