28738472407 has 8 divisors (see below), whose sum is σ = 30083346432. Its totient is φ = 27419712600.

The previous prime is 28738472393. The next prime is 28738472417. The reversal of 28738472407 is 70427483782.

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

It is a cyclic number.

It is not a de Polignac number, because 28738472407 - 2¹¹ = 28738470359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28738472417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6526303 + ... + 6530704.

It is an arithmetic number, because the mean of its divisors is an integer number (3760418304).

Almost surely, 2^28738472407 is an apocalyptic number.

28738472407 is a deficient number, since it is larger than the sum of its proper divisors (1344874025).

28738472407 is a wasteful number, since it uses less digits than its factorization.

28738472407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13057109.

The product of its (nonzero) digits is 4214784, while the sum is 52.

The spelling of 28738472407 in words is "twenty-eight billion, seven hundred thirty-eight million, four hundred seventy-two thousand, four hundred seven".