53378268799 has 4 divisors (see below), whose sum is σ = 53387354160. Its totient is φ = 53369183440.

The previous prime is 53378268787. The next prime is 53378268817. The reversal of 53378268799 is 99786287335.

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 53378268799 - 2²⁹ = 52841397887 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53378268709) 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, 4533862 + ... + 4545619.

It is an arithmetic number, because the mean of its divisors is an integer number (13346838540).

Almost surely, 2^53378268799 is an apocalyptic number.

53378268799 is a deficient number, since it is larger than the sum of its proper divisors (9085361).

53378268799 is an equidigital number, since it uses as much as digits as its factorization.

53378268799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9085360.

The product of its digits is 137168640, while the sum is 67.

The spelling of 53378268799 in words is "fifty-three billion, three hundred seventy-eight million, two hundred sixty-eight thousand, seven hundred ninety-nine".