51460477642 has 16 divisors (see below), whose sum is σ = 90269543232. Its totient is φ = 21541595040.

The previous prime is 51460477619. The next prime is 51460477661. The reversal of 51460477642 is 24677406415.

It is a junction number, because it is equal to n+sod(n) for n = 51460477592 and 51460477601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42740659 + ... + 42741862.

It is an arithmetic number, because the mean of its divisors is an integer number (5641846452).

Almost surely, 2^51460477642 is an apocalyptic number.

51460477642 is a deficient number, since it is larger than the sum of its proper divisors (38809065590).

51460477642 is a wasteful number, since it uses less digits than its factorization.

51460477642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85482573.

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 51460477642 in words is "fifty-one billion, four hundred sixty million, four hundred seventy-seven thousand, six hundred forty-two".