51793472659 has 4 divisors (see below), whose sum is σ = 52375421880. Its totient is φ = 51211523440.

The previous prime is 51793472639. The next prime is 51793472663. The reversal of 51793472659 is 95627439715.

It is a happy number.

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 51793472659 - 2¹³ = 51793464467 is a prime.

It is a Smith number, since the sum of its digits (58) 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 not an unprimeable number, because it can be changed into a prime (51793472639) 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, 290974477 + ... + 290974654.

It is an arithmetic number, because the mean of its divisors is an integer number (13093855470).

Almost surely, 2^51793472659 is an apocalyptic number.

51793472659 is a deficient number, since it is larger than the sum of its proper divisors (581949221).

51793472659 is an equidigital number, since it uses as much as digits as its factorization.

51793472659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581949220.

The product of its digits is 14288400, while the sum is 58.

The spelling of 51793472659 in words is "fifty-one billion, seven hundred ninety-three million, four hundred seventy-two thousand, six hundred fifty-nine".