51147934433 has 8 divisors (see below), whose sum is σ = 52983863400. Its totient is φ = 49316819328.

The previous prime is 51147934429. The next prime is 51147934441. The reversal of 51147934433 is 33443974115.

It can be written as a sum of positive squares in 4 ways, for example, as 20777204449 + 30370729984 = 144143^2 + 174272^2 .

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 51147934433 - 2² = 51147934429 is a prime.

It is a super-2 number, since 2×51147934433² (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 (51147934423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1181828 + ... + 1224341.

It is an arithmetic number, because the mean of its divisors is an integer number (6622982925).

Almost surely, 2^51147934433 is an apocalyptic number.

It is an amenable number.

51147934433 is a deficient number, since it is larger than the sum of its proper divisors (1835928967).

51147934433 is a wasteful number, since it uses less digits than its factorization.

51147934433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406931.

The product of its digits is 544320, while the sum is 44.

The spelling of 51147934433 in words is "fifty-one billion, one hundred forty-seven million, nine hundred thirty-four thousand, four hundred thirty-three".