51117600633 has 16 divisors (see below), whose sum is σ = 75571776192. Its totient is φ = 30472488000.

The previous prime is 51117600619. The next prime is 51117600683. The reversal of 51117600633 is 33600671115.

It is a happy number.

It is not a de Polignac number, because 51117600633 - 2¹⁰ = 51117599609 is a prime.

It is a super-2 number, since 2×51117600633² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51117600594 and 51117600603.

It is not an unprimeable number, because it can be changed into a prime (51117600613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12694858 + ... + 12698883.

It is an arithmetic number, because the mean of its divisors is an integer number (4723236012).

Almost surely, 2^51117600633 is an apocalyptic number.

It is an amenable number.

51117600633 is a deficient number, since it is larger than the sum of its proper divisors (24454175559).

51117600633 is a wasteful number, since it uses less digits than its factorization.

51117600633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25393816.

The product of its (nonzero) digits is 11340, while the sum is 33.

The spelling of 51117600633 in words is "fifty-one billion, one hundred seventeen million, six hundred thousand, six hundred thirty-three".