51161431552436 has 12 divisors (see below), whose sum is σ = 92420650546560. Its totient is φ = 24755531396280.

The previous prime is 51161431552421. The next prime is 51161431552453. The reversal of 51161431552436 is 63425513416115.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206296094846 + ... + 206296095093.

It is an arithmetic number, because the mean of its divisors is an integer number (7701720878880).

Almost surely, 2^{51161431552436} is an apocalyptic number.

It is an amenable number.

51161431552436 is a deficient number, since it is larger than the sum of its proper divisors (41259218994124).

51161431552436 is a wasteful number, since it uses less digits than its factorization.

51161431552436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412592189974 (or 412592189972 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 47.

The spelling of 51161431552436 in words is "fifty-one trillion, one hundred sixty-one billion, four hundred thirty-one million, five hundred fifty-two thousand, four hundred thirty-six".