51195945471 has 16 divisors (see below), whose sum is σ = 74677800960. Its totient is φ = 30939941120.

The previous prime is 51195945439. The next prime is 51195945481. The reversal of 51195945471 is 17454959115.

It is not a de Polignac number, because 51195945471 - 2⁵ = 51195945439 is a prime.

It is a super-3 number, since 3×51195945471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51195945421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2185791 + ... + 2209088.

It is an arithmetic number, because the mean of its divisors is an integer number (4667362560).

Almost surely, 2^51195945471 is an apocalyptic number.

51195945471 is a deficient number, since it is larger than the sum of its proper divisors (23481855489).

51195945471 is a wasteful number, since it uses less digits than its factorization.

51195945471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395246.

The product of its digits is 1134000, while the sum is 51.

The spelling of 51195945471 in words is "fifty-one billion, one hundred ninety-five million, nine hundred forty-five thousand, four hundred seventy-one".