28956614401 has 16 divisors (see below), whose sum is σ = 34197101568. Its totient is φ = 24172012800.

The previous prime is 28956614399. The next prime is 28956614419. The reversal of 28956614401 is 10441665982.

It is a happy number.

It is not a de Polignac number, because 28956614401 - 2¹ = 28956614399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28956614431) 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, 502776 + ... + 557401.

It is an arithmetic number, because the mean of its divisors is an integer number (2137318848).

Almost surely, 2^28956614401 is an apocalyptic number.

It is an amenable number.

28956614401 is a deficient number, since it is larger than the sum of its proper divisors (5240487167).

28956614401 is a wasteful number, since it uses less digits than its factorization.

28956614401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060392.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 28956614401 in words is "twenty-eight billion, nine hundred fifty-six million, six hundred fourteen thousand, four hundred one".