28132920007 has 2 divisors, whose sum is σ = 28132920008. Its totient is φ = 28132920006.

The previous prime is 28132919977. The next prime is 28132920037. The reversal of 28132920007 is 70002923182.

It is a balanced prime because it is at equal distance from previous prime (28132919977) and next prime (28132920037).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28132920007 is a prime.

It is a super-2 number, since 2×28132920007² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28132920037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14066460003 + 14066460004.

It is an arithmetic number, because the mean of its divisors is an integer number (14066460004).

Almost surely, 2^28132920007 is an apocalyptic number.

28132920007 is a deficient number, since it is larger than the sum of its proper divisors (1).

28132920007 is an equidigital number, since it uses as much as digits as its factorization.

28132920007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 28132920007 in words is "twenty-eight billion, one hundred thirty-two million, nine hundred twenty thousand, seven".