51074150381 has 2 divisors, whose sum is σ = 51074150382. Its totient is φ = 51074150380.

The previous prime is 51074150353. The next prime is 51074150411. The reversal of 51074150381 is 18305147015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45767756356 + 5306394025 = 213934^2 + 72845^2 .

It is a cyclic number.

It is not a de Polignac number, because 51074150381 - 2¹⁴ = 51074133997 is a prime.

It is a super-2 number, since 2×51074150381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51074153381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25537075190 + 25537075191.

It is an arithmetic number, because the mean of its divisors is an integer number (25537075191).

Almost surely, 2^51074150381 is an apocalyptic number.

It is an amenable number.

51074150381 is a deficient number, since it is larger than the sum of its proper divisors (1).

51074150381 is an equidigital number, since it uses as much as digits as its factorization.

51074150381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 35.

Adding to 51074150381 its reverse (18305147015), we get a palindrome (69379297396).

The spelling of 51074150381 in words is "fifty-one billion, seventy-four million, one hundred fifty thousand, three hundred eighty-one".