53439740799 has 4 divisors (see below), whose sum is σ = 71252987736. Its totient is φ = 35626493864.

The previous prime is 53439740791. The next prime is 53439740801. The reversal of 53439740799 is 99704793435.

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 53439740799 - 2³ = 53439740791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53439740791) 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, 8906623464 + ... + 8906623469.

It is an arithmetic number, because the mean of its divisors is an integer number (17813246934).

Almost surely, 2^53439740799 is an apocalyptic number.

53439740799 is a deficient number, since it is larger than the sum of its proper divisors (17813246937).

53439740799 is a wasteful number, since it uses less digits than its factorization.

53439740799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17813246936.

The product of its (nonzero) digits is 25719120, while the sum is 60.

The spelling of 53439740799 in words is "fifty-three billion, four hundred thirty-nine million, seven hundred forty thousand, seven hundred ninety-nine".