51108910379 has 4 divisors (see below), whose sum is σ = 51109705560. Its totient is φ = 51108115200.

The previous prime is 51108910343. The next prime is 51108910387. The reversal of 51108910379 is 97301980115.

51108910379 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 51108910379 - 2⁸ = 51108910123 is a prime.

It is a super-2 number, since 2×51108910379² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51108910079) 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, 291797 + ... + 432854.

It is an arithmetic number, because the mean of its divisors is an integer number (12777426390).

Almost surely, 2^51108910379 is an apocalyptic number.

51108910379 is a deficient number, since it is larger than the sum of its proper divisors (795181).

51108910379 is an equidigital number, since it uses as much as digits as its factorization.

51108910379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795180.

The product of its (nonzero) digits is 68040, while the sum is 44.

The spelling of 51108910379 in words is "fifty-one billion, one hundred eight million, nine hundred ten thousand, three hundred seventy-nine".