51471154281 has 16 divisors (see below), whose sum is σ = 71225985600. Its totient is φ = 33022922688.

The previous prime is 51471154277. The next prime is 51471154283. The reversal of 51471154281 is 18245117415.

It is a happy number.

It is not a de Polignac number, because 51471154281 - 2² = 51471154277 is a prime.

It is a super-2 number, since 2×51471154281² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51471154283) 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, 936846 + ... + 990263.

It is an arithmetic number, because the mean of its divisors is an integer number (4451624100).

Almost surely, 2^51471154281 is an apocalyptic number.

It is an amenable number.

51471154281 is a deficient number, since it is larger than the sum of its proper divisors (19754831319).

51471154281 is a wasteful number, since it uses less digits than its factorization.

51471154281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1927448.

The product of its digits is 44800, while the sum is 39.

The spelling of 51471154281 in words is "fifty-one billion, four hundred seventy-one million, one hundred fifty-four thousand, two hundred eighty-one".