51612452839 has 8 divisors (see below), whose sum is σ = 52389528048. Its totient is φ = 50835576000.

The previous prime is 51612452821. The next prime is 51612452861. The reversal of 51612452839 is 93825421615.

51612452839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51612452839 - 2²⁷ = 51478235111 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 (51612452819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524259 + ... + 614875.

It is an arithmetic number, because the mean of its divisors is an integer number (6548691006).

Almost surely, 2^51612452839 is an apocalyptic number.

51612452839 is a deficient number, since it is larger than the sum of its proper divisors (777075209).

51612452839 is an equidigital number, since it uses as much as digits as its factorization.

51612452839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99185.

The product of its digits is 518400, while the sum is 46.

The spelling of 51612452839 in words is "fifty-one billion, six hundred twelve million, four hundred fifty-two thousand, eight hundred thirty-nine".