28107507407 has 16 divisors (see below), whose sum is σ = 32669245440. Its totient is φ = 23684985792.

The previous prime is 28107507391. The next prime is 28107507419. The reversal of 28107507407 is 70470570182.

It is a cyclic number.

It is not a de Polignac number, because 28107507407 - 2⁴ = 28107507391 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 (28107507497) 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 15 ways as a sum of consecutive naturals, for example, 19778 + ... + 237920.

It is an arithmetic number, because the mean of its divisors is an integer number (2041827840).

Almost surely, 2^28107507407 is an apocalyptic number.

28107507407 is a deficient number, since it is larger than the sum of its proper divisors (4561738033).

28107507407 is a wasteful number, since it uses less digits than its factorization.

28107507407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218462.

The product of its (nonzero) digits is 109760, while the sum is 41.

The spelling of 28107507407 in words is "twenty-eight billion, one hundred seven million, five hundred seven thousand, four hundred seven".