51833393481 has 8 divisors (see below), whose sum is σ = 71340584704. Its totient is φ = 33440898960.

The previous prime is 51833393459. The next prime is 51833393497. The reversal of 51833393481 is 18439333815.

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

It is not a de Polignac number, because 51833393481 - 2¹⁴ = 51833377097 is a prime.

It is a super-2 number, since 2×51833393481² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51833393481.

It is not an unprimeable number, because it can be changed into a prime (51833393401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278674066 + ... + 278674251.

It is an arithmetic number, because the mean of its divisors is an integer number (8917573088).

Almost surely, 2^51833393481 is an apocalyptic number.

It is an amenable number.

51833393481 is a deficient number, since it is larger than the sum of its proper divisors (19507191223).

51833393481 is a wasteful number, since it uses less digits than its factorization.

51833393481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557348351.

The product of its digits is 933120, while the sum is 48.

The spelling of 51833393481 in words is "fifty-one billion, eight hundred thirty-three million, three hundred ninety-three thousand, four hundred eighty-one".