51233511016 has 8 divisors (see below), whose sum is σ = 96062833170. Its totient is φ = 25616755504.

The previous prime is 51233511013. The next prime is 51233511029. The reversal of 51233511016 is 61011533215.

It can be written as a sum of positive squares in only one way, i.e., 33323042116 + 17910468900 = 182546^2 + 133830^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×51233511016³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (51233511013) 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 as a sum of consecutive naturals, namely, 3202094431 + ... + 3202094446.

Almost surely, 2^51233511016 is an apocalyptic number.

It is an amenable number.

51233511016 is a deficient number, since it is larger than the sum of its proper divisors (44829322154).

51233511016 is a wasteful number, since it uses less digits than its factorization.

51233511016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404188883 (or 6404188879 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The spelling of 51233511016 in words is "fifty-one billion, two hundred thirty-three million, five hundred eleven thousand, sixteen".