51603867149 has 8 divisors (see below), whose sum is σ = 54642091968. Its totient is φ = 48565942720.

The previous prime is 51603867127. The next prime is 51603867167. The reversal of 51603867149 is 94176830615.

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

It is not a de Polignac number, because 51603867149 - 2³² = 47308899853 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51603867097 and 51603867106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51603867179) 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, 346154 + ... + 472260.

It is an arithmetic number, because the mean of its divisors is an integer number (6830261496).

Almost surely, 2^51603867149 is an apocalyptic number.

It is an amenable number.

51603867149 is a deficient number, since it is larger than the sum of its proper divisors (3038224819).

51603867149 is a wasteful number, since it uses less digits than its factorization.

51603867149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150195.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 51603867149 in words is "fifty-one billion, six hundred three million, eight hundred sixty-seven thousand, one hundred forty-nine".