51645252546332 has 24 divisors (see below), whose sum is σ = 94703319244800. Its totient is φ = 24596556505136.

The previous prime is 51645252546233. The next prime is 51645252546373. The reversal of 51645252546332 is 23364525254615.

It is a super-2 number, since 2×51645252546332² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174374332 + ... + 1174418307.

It is an arithmetic number, because the mean of its divisors is an integer number (3945971635200).

Almost surely, 2^{51645252546332} is an apocalyptic number.

It is an amenable number.

51645252546332 is a deficient number, since it is larger than the sum of its proper divisors (43058066698468).

51645252546332 is a wasteful number, since it uses less digits than its factorization.

51645252546332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348792905 (or 2348792903 counting only the distinct ones).

The product of its digits is 25920000, while the sum is 53.

The spelling of 51645252546332 in words is "fifty-one trillion, six hundred forty-five billion, two hundred fifty-two million, five hundred forty-six thousand, three hundred thirty-two".