20528671400 has 48 divisors (see below), whose sum is σ = 48333364800. Its totient is φ = 8107519680.

The previous prime is 20528671399. The next prime is 20528671451. The reversal of 20528671400 is 417682502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 633842 + ... + 665441.

It is an arithmetic number, because the mean of its divisors is an integer number (1006945100).

Almost surely, 2^20528671400 is an apocalyptic number.

20528671400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20528671400 is an abundant number, since it is smaller than the sum of its proper divisors (27804693400).

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

20528671400 is a wasteful number, since it uses less digits than its factorization.

20528671400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299378 (or 1299369 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 20528671400 in words is "twenty billion, five hundred twenty-eight million, six hundred seventy-one thousand, four hundred".