51724671671401 has 2 divisors, whose sum is σ = 51724671671402. Its totient is φ = 51724671671400.

The previous prime is 51724671671287. The next prime is 51724671671441. The reversal of 51724671671401 is 10417617642715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51686020111401 + 38651560000 = 7189299^2 + 196600^2 .

It is a cyclic number.

It is not a de Polignac number, because 51724671671401 - 2¹³ = 51724671663209 is a prime.

It is not a weakly prime, because it can be changed into another prime (51724671671441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25862335835700 + 25862335835701.

It is an arithmetic number, because the mean of its divisors is an integer number (25862335835701).

Almost surely, 2^{51724671671401} is an apocalyptic number.

It is an amenable number.

51724671671401 is a deficient number, since it is larger than the sum of its proper divisors (1).

51724671671401 is an equidigital number, since it uses as much as digits as its factorization.

51724671671401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 51724671671401 in words is "fifty-one trillion, seven hundred twenty-four billion, six hundred seventy-one million, six hundred seventy-one thousand, four hundred one".