51120227881879 has 8 divisors (see below), whose sum is σ = 55052612788320. Its totient is φ = 47187851501856.

The previous prime is 51120227881847. The next prime is 51120227881939. The reversal of 51120227881879 is 97818872202115.

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

It is not a de Polignac number, because 51120227881879 - 2⁵ = 51120227881847 is a prime.

It is a super-2 number, since 2×51120227881879² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51120221881879) 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, 16089177 + ... + 19002685.

It is an arithmetic number, because the mean of its divisors is an integer number (6881576598540).

Almost surely, 2^{51120227881879} is an apocalyptic number.

51120227881879 is a deficient number, since it is larger than the sum of its proper divisors (3932384906441).

51120227881879 is a wasteful number, since it uses less digits than its factorization.

51120227881879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263209.

The product of its (nonzero) digits is 9031680, while the sum is 61.

The spelling of 51120227881879 in words is "fifty-one trillion, one hundred twenty billion, two hundred twenty-seven million, eight hundred eighty-one thousand, eight hundred seventy-nine".