51471154277 has 2 divisors, whose sum is σ = 51471154278. Its totient is φ = 51471154276.

The previous prime is 51471154243. The next prime is 51471154283. The reversal of 51471154277 is 77245117415.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26835026596 + 24636127681 = 163814^2 + 156959^2 .

It is a cyclic number.

It is not a de Polignac number, because 51471154277 - 2²⁴ = 51454377061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51471154237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25735577138 + 25735577139.

It is an arithmetic number, because the mean of its divisors is an integer number (25735577139).

Almost surely, 2^51471154277 is an apocalyptic number.

It is an amenable number.

51471154277 is a deficient number, since it is larger than the sum of its proper divisors (1).

51471154277 is an equidigital number, since it uses as much as digits as its factorization.

51471154277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 274400, while the sum is 44.

The spelling of 51471154277 in words is "fifty-one billion, four hundred seventy-one million, one hundred fifty-four thousand, two hundred seventy-seven".