51949473045 has 8 divisors (see below), whose sum is σ = 83119156896. Its totient is φ = 27706385616.

The previous prime is 51949473013. The next prime is 51949473047. The reversal of 51949473045 is 54037494915.

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 51949473045 - 2⁵ = 51949473013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51949473047) 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, 1731649087 + ... + 1731649116.

It is an arithmetic number, because the mean of its divisors is an integer number (10389894612).

Almost surely, 2^51949473045 is an apocalyptic number.

It is an amenable number.

51949473045 is a deficient number, since it is larger than the sum of its proper divisors (31169683851).

51949473045 is a wasteful number, since it uses less digits than its factorization.

51949473045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463298211.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 51949473045 in words is "fifty-one billion, nine hundred forty-nine million, four hundred seventy-three thousand, forty-five".