20529614228 has 24 divisors (see below), whose sum is σ = 39121773600. Its totient is φ = 9389223648.

The previous prime is 20529614221. The next prime is 20529614267. The reversal of 20529614228 is 82241692502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20529614221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4655150 + ... + 4659557.

It is an arithmetic number, because the mean of its divisors is an integer number (1630073900).

Almost surely, 2^20529614228 is an apocalyptic number.

It is an amenable number.

20529614228 is a deficient number, since it is larger than the sum of its proper divisors (18592159372).

20529614228 is a wasteful number, since it uses less digits than its factorization.

20529614228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9314759 (or 9314757 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 20529614228 in words is "twenty billion, five hundred twenty-nine million, six hundred fourteen thousand, two hundred twenty-eight".