28078062807 has 8 divisors (see below), whose sum is σ = 37625545600. Its totient is φ = 18624644280.

The previous prime is 28078062799. The next prime is 28078062811. The reversal of 28078062807 is 70826087082.

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

It is not a de Polignac number, because 28078062807 - 2³ = 28078062799 is a prime.

It is a super-2 number, since 2×28078062807² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28078062007) 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, 23515369 + ... + 23516562.

It is an arithmetic number, because the mean of its divisors is an integer number (4703193200).

Almost surely, 2^28078062807 is an apocalyptic number.

28078062807 is a deficient number, since it is larger than the sum of its proper divisors (9547482793).

28078062807 is a wasteful number, since it uses less digits than its factorization.

28078062807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47032133.

The product of its (nonzero) digits is 602112, while the sum is 48.

The spelling of 28078062807 in words is "twenty-eight billion, seventy-eight million, sixty-two thousand, eight hundred seven".