51626323799 has 4 divisors (see below), whose sum is σ = 51896618880. Its totient is φ = 51356028720.

The previous prime is 51626323781. The next prime is 51626323807. The reversal of 51626323799 is 99732362615.

51626323799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51626323799 - 2¹⁶ = 51626258263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51626323799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51626323699) 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, 135147254 + ... + 135147635.

It is an arithmetic number, because the mean of its divisors is an integer number (12974154720).

Almost surely, 2^51626323799 is an apocalyptic number.

51626323799 is a deficient number, since it is larger than the sum of its proper divisors (270295081).

51626323799 is a wasteful number, since it uses less digits than its factorization.

51626323799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270295080.

The product of its digits is 3674160, while the sum is 53.

The spelling of 51626323799 in words is "fifty-one billion, six hundred twenty-six million, three hundred twenty-three thousand, seven hundred ninety-nine".