28946052809 has 16 divisors (see below), whose sum is σ = 30140436480. Its totient is φ = 27768545280.

The previous prime is 28946052799. The next prime is 28946052853. The reversal of 28946052809 is 90825064982.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28946052809 is a prime.

It is a super-3 number, since 3×28946052809³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28946052859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3261512 + ... + 3270374.

It is an arithmetic number, because the mean of its divisors is an integer number (1883777280).

Almost surely, 2^28946052809 is an apocalyptic number.

It is an amenable number.

28946052809 is a deficient number, since it is larger than the sum of its proper divisors (1194383671).

28946052809 is a wasteful number, since it uses less digits than its factorization.

28946052809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9800.

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 28946052809 in words is "twenty-eight billion, nine hundred forty-six million, fifty-two thousand, eight hundred nine".