28953605774 has 8 divisors (see below), whose sum is σ = 43440201408. Its totient is φ = 14473538640.

The previous prime is 28953605749. The next prime is 28953605803. The reversal of 28953605774 is 47750635982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×28953605774² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1621022 + ... + 1638785.

It is an arithmetic number, because the mean of its divisors is an integer number (5430025176).

Almost surely, 2^28953605774 is an apocalyptic number.

28953605774 is a deficient number, since it is larger than the sum of its proper divisors (14486595634).

28953605774 is a wasteful number, since it uses less digits than its factorization.

28953605774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264250.

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 28953605774 in words is "twenty-eight billion, nine hundred fifty-three million, six hundred five thousand, seven hundred seventy-four".