51264026873 has 4 divisors (see below), whose sum is σ = 51293172480. Its totient is φ = 51234881268.

The previous prime is 51264026783. The next prime is 51264026887. The reversal of 51264026873 is 37862046215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51264026873 - 2¹⁰ = 51264025849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51264026273) 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, 14570165 + ... + 14573682.

It is an arithmetic number, because the mean of its divisors is an integer number (12823293120).

Almost surely, 2^51264026873 is an apocalyptic number.

It is an amenable number.

51264026873 is a deficient number, since it is larger than the sum of its proper divisors (29145607).

51264026873 is a wasteful number, since it uses less digits than its factorization.

51264026873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29145606.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 51264026873 in words is "fifty-one billion, two hundred sixty-four million, twenty-six thousand, eight hundred seventy-three".