51613618206304 has 48 divisors (see below), whose sum is σ = 126687971966976. Its totient is φ = 20109201897600.

The previous prime is 51613618206301. The next prime is 51613618206307. The reversal of 51613618206304 is 40360281631615.

It is an interprime number because it is at equal distance from previous prime (51613618206301) and next prime (51613618206307).

It is a super-2 number, since 2×51613618206304² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51613618206301) 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, 10473540192 + ... + 10473545119.

It is an arithmetic number, because the mean of its divisors is an integer number (2639332749312).

Almost surely, 2^{51613618206304} is an apocalyptic number.

It is an amenable number.

51613618206304 is an abundant number, since it is smaller than the sum of its proper divisors (75074353760672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51613618206304 is a wasteful number, since it uses less digits than its factorization.

51613618206304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20947085339 (or 20947085331 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

Adding to 51613618206304 its reverse (40360281631615), we get a palindrome (91973899837919).

The spelling of 51613618206304 in words is "fifty-one trillion, six hundred thirteen billion, six hundred eighteen million, two hundred six thousand, three hundred four".