20528363258 has 16 divisors (see below), whose sum is σ = 33179042400. Its totient is φ = 9469532016.

The previous prime is 20528363239. The next prime is 20528363269. The reversal of 20528363258 is 85236382502.

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, 162908 + ... + 259991.

It is an arithmetic number, because the mean of its divisors is an integer number (2073690150).

Almost surely, 2^20528363258 is an apocalyptic number.

20528363258 is a deficient number, since it is larger than the sum of its proper divisors (12650679142).

20528363258 is a wasteful number, since it uses less digits than its factorization.

20528363258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424781.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 20528363258 in words is "twenty billion, five hundred twenty-eight million, three hundred sixty-three thousand, two hundred fifty-eight".