28430993299967 has 4 divisors (see below), whose sum is σ = 28724096323776. Its totient is φ = 28137890276160.

The previous prime is 28430993299957. The next prime is 28430993300029. The reversal of 28430993299967 is 76999239903482.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28430993299967 - 2⁸ = 28430993299711 is a prime.

It is a super-3 number, since 3×28430993299967³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28430993299891 and 28430993299900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28430993299957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146551511759 + ... + 146551511952.

It is an arithmetic number, because the mean of its divisors is an integer number (7181024080944).

Almost surely, 2^{28430993299967} is an apocalyptic number.

28430993299967 is a deficient number, since it is larger than the sum of its proper divisors (293103023809).

28430993299967 is an equidigital number, since it uses as much as digits as its factorization.

28430993299967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293103023808.

The product of its (nonzero) digits is 2857026816, while the sum is 80.

The spelling of 28430993299967 in words is "twenty-eight trillion, four hundred thirty billion, nine hundred ninety-three million, two hundred ninety-nine thousand, nine hundred sixty-seven".