28783320264719 has 4 divisors (see below), whose sum is σ = 28816140471144. Its totient is φ = 28750500058296.

The previous prime is 28783320264709. The next prime is 28783320264731. The reversal of 28783320264719 is 91746202338782.

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 28783320264719 - 2⁸ = 28783320264463 is a prime.

It is a super-2 number, since 2×28783320264719² (a number of 28 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 (28783320264709) 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, 16410101897 + ... + 16410103650.

It is an arithmetic number, because the mean of its divisors is an integer number (7204035117786).

Almost surely, 2^{28783320264719} is an apocalyptic number.

28783320264719 is a deficient number, since it is larger than the sum of its proper divisors (32820206425).

28783320264719 is an equidigital number, since it uses as much as digits as its factorization.

28783320264719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32820206424.

The product of its (nonzero) digits is 48771072, while the sum is 62.

The spelling of 28783320264719 in words is "twenty-eight trillion, seven hundred eighty-three billion, three hundred twenty million, two hundred sixty-four thousand, seven hundred nineteen".