51498837566 has 32 divisors (see below), whose sum is σ = 85426126848. Its totient is φ = 23089782240.

The previous prime is 51498837563. The next prime is 51498837571. The reversal of 51498837566 is 66573889415.

It is a junction number, because it is equal to n+sod(n) for n = 51498837499 and 51498837508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51498837563) 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, 430091 + ... + 536633.

It is an arithmetic number, because the mean of its divisors is an integer number (2669566464).

Almost surely, 2^51498837566 is an apocalyptic number.

51498837566 is a deficient number, since it is larger than the sum of its proper divisors (33927289282).

51498837566 is a wasteful number, since it uses less digits than its factorization.

51498837566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106856.

The product of its digits is 43545600, while the sum is 62.

The spelling of 51498837566 in words is "fifty-one billion, four hundred ninety-eight million, eight hundred thirty-seven thousand, five hundred sixty-six".