20028626875 has 10 divisors (see below), whose sum is σ = 25027772924. Its totient is φ = 16022901000.

The previous prime is 20028626861. The next prime is 20028626879. The reversal of 20028626875 is 57862682002.

It is not a de Polignac number, because 20028626875 - 2⁹ = 20028626363 is a prime.

It is a super-2 number, since 2×20028626875² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20028626879) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16022277 + ... + 16023526.

Almost surely, 2^20028626875 is an apocalyptic number.

20028626875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20028626875 is a deficient number, since it is larger than the sum of its proper divisors (4999146049).

20028626875 is an frugal number, since it uses more digits than its factorization.

20028626875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32045823 (or 32045808 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 20028626875 in words is "twenty billion, twenty-eight million, six hundred twenty-six thousand, eight hundred seventy-five".