51154172314061 has 2 divisors, whose sum is σ = 51154172314062. Its totient is φ = 51154172314060.

The previous prime is 51154172314043. The next prime is 51154172314151. The reversal of 51154172314061 is 16041327145115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38959193392900 + 12194978921161 = 6241730^2 + 3492131^2 .

It is a cyclic number.

It is not a de Polignac number, because 51154172314061 - 2¹⁰ = 51154172313037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51154172314361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25577086157030 + 25577086157031.

It is an arithmetic number, because the mean of its divisors is an integer number (25577086157031).

Almost surely, 2^{51154172314061} is an apocalyptic number.

It is an amenable number.

51154172314061 is a deficient number, since it is larger than the sum of its proper divisors (1).

51154172314061 is an equidigital number, since it uses as much as digits as its factorization.

51154172314061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 41.

Adding to 51154172314061 its reverse (16041327145115), we get a palindrome (67195499459176).

The spelling of 51154172314061 in words is "fifty-one trillion, one hundred fifty-four billion, one hundred seventy-two million, three hundred fourteen thousand, sixty-one".