51371551461 has 8 divisors (see below), whose sum is σ = 70857312480. Its totient is φ = 33066745712.

The previous prime is 51371551417. The next prime is 51371551471. The reversal of 51371551461 is 16415517315.

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

It is a cyclic number.

It is not a de Polignac number, because 51371551461 - 2¹⁴ = 51371535077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51371551471) 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, 295238715 + ... + 295238888.

It is an arithmetic number, because the mean of its divisors is an integer number (8857164060).

Almost surely, 2^51371551461 is an apocalyptic number.

It is an amenable number.

51371551461 is a deficient number, since it is larger than the sum of its proper divisors (19485761019).

51371551461 is a wasteful number, since it uses less digits than its factorization.

51371551461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590477635.

The product of its digits is 63000, while the sum is 39.

The spelling of 51371551461 in words is "fifty-one billion, three hundred seventy-one million, five hundred fifty-one thousand, four hundred sixty-one".