51460426646 has 8 divisors (see below), whose sum is σ = 77206245744. Its totient is φ = 25725011400.

The previous prime is 51460426613. The next prime is 51460426651. The reversal of 51460426646 is 64662406415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 51460426597 and 51460426606.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2588585 + ... + 2608388.

It is an arithmetic number, because the mean of its divisors is an integer number (9650780718).

Almost surely, 2^51460426646 is an apocalyptic number.

51460426646 is a deficient number, since it is larger than the sum of its proper divisors (25745819098).

51460426646 is a wasteful number, since it uses less digits than its factorization.

51460426646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201926.

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 51460426646 in words is "fifty-one billion, four hundred sixty million, four hundred twenty-six thousand, six hundred forty-six".