20028673535 has 16 divisors (see below), whose sum is σ = 26775735840. Its totient is φ = 14280389760.

The previous prime is 20028673517. The next prime is 20028673633. The reversal of 20028673535 is 53537682002.

It is not a de Polignac number, because 20028673535 - 2⁸ = 20028673279 is a prime.

It is a super-2 number, since 2×20028673535² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20028673492 and 20028673501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5310761 + ... + 5314530.

It is an arithmetic number, because the mean of its divisors is an integer number (1673483490).

Almost surely, 2^20028673535 is an apocalyptic number.

20028673535 is a deficient number, since it is larger than the sum of its proper divisors (6747062305).

20028673535 is a wasteful number, since it uses less digits than its factorization.

20028673535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10625338.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 20028673535 in words is "twenty billion, twenty-eight million, six hundred seventy-three thousand, five hundred thirty-five".