51694044603 has 8 divisors (see below), whose sum is σ = 68926445568. Its totient is φ = 34462170024.

The previous prime is 51694044551. The next prime is 51694044659. The reversal of 51694044603 is 30644049615.

It is a happy number.

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

It is not a de Polignac number, because 51694044603 - 2¹⁰ = 51694043579 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (51694046603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296550 + ... + 437412.

It is an arithmetic number, because the mean of its divisors is an integer number (8615805696).

Almost surely, 2^51694044603 is an apocalyptic number.

51694044603 is a deficient number, since it is larger than the sum of its proper divisors (17232400965).

51694044603 is a wasteful number, since it uses less digits than its factorization.

51694044603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263193.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 51694044603 in words is "fifty-one billion, six hundred ninety-four million, forty-four thousand, six hundred three".