28400925826907 has 2 divisors, whose sum is σ = 28400925826908. Its totient is φ = 28400925826906.

The previous prime is 28400925826787. The next prime is 28400925826913. The reversal of 28400925826907 is 70962852900482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28400925826907 - 2¹⁶ = 28400925761371 is a prime.

It is a super-2 number, since 2×28400925826907² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28400925826907.

It is not a weakly prime, because it can be changed into another prime (28400925826957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14200462913453 + 14200462913454.

It is an arithmetic number, because the mean of its divisors is an integer number (14200462913454).

Almost surely, 2^{28400925826907} is an apocalyptic number.

28400925826907 is a deficient number, since it is larger than the sum of its proper divisors (1).

28400925826907 is an equidigital number, since it uses as much as digits as its factorization.

28400925826907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 28400925826907 in words is "twenty-eight trillion, four hundred billion, nine hundred twenty-five million, eight hundred twenty-six thousand, nine hundred seven".