51603763746 has 16 divisors (see below), whose sum is σ = 107694811584. Its totient is φ = 16453373904.

The previous prime is 51603763733. The next prime is 51603763751. The reversal of 51603763746 is 64736730615.

It is a junction number, because it is equal to n+sod(n) for n = 51603763695 and 51603763704.

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, 186970021 + ... + 186970296.

It is an arithmetic number, because the mean of its divisors is an integer number (6730925724).

Almost surely, 2^51603763746 is an apocalyptic number.

51603763746 is an abundant number, since it is smaller than the sum of its proper divisors (56091047838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51603763746 is a wasteful number, since it uses less digits than its factorization.

51603763746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373940345.

The product of its (nonzero) digits is 1905120, while the sum is 48.

The spelling of 51603763746 in words is "fifty-one billion, six hundred three million, seven hundred sixty-three thousand, seven hundred forty-six".