51452835871 has 4 divisors (see below), whose sum is σ = 51453514000. Its totient is φ = 51452157744.

The previous prime is 51452835857. The next prime is 51452835887. The reversal of 51452835871 is 17853825415.

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 51452835871 - 2²⁹ = 50915964959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51452835971) 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, 208491 + ... + 382588.

It is an arithmetic number, because the mean of its divisors is an integer number (12863378500).

Almost surely, 2^51452835871 is an apocalyptic number.

51452835871 is a deficient number, since it is larger than the sum of its proper divisors (678129).

51452835871 is an equidigital number, since it uses as much as digits as its factorization.

51452835871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678128.

The product of its digits is 1344000, while the sum is 49.

The spelling of 51452835871 in words is "fifty-one billion, four hundred fifty-two million, eight hundred thirty-five thousand, eight hundred seventy-one".