71027451157673 has 2 divisors, whose sum is σ = 71027451157674. Its totient is φ = 71027451157672.

The previous prime is 71027451157669. The next prime is 71027451157717. The reversal of 71027451157673 is 37675115472017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44531024346649 + 26496426811024 = 6673157^2 + 5147468^2 .

It is an emirp because it is prime and its reverse (37675115472017) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71027451157673 - 2² = 71027451157669 is a prime.

It is not a weakly prime, because it can be changed into another prime (71027457157673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35513725578836 + 35513725578837.

It is an arithmetic number, because the mean of its divisors is an integer number (35513725578837).

Almost surely, 2^{71027451157673} is an apocalyptic number.

It is an amenable number.

71027451157673 is a deficient number, since it is larger than the sum of its proper divisors (1).

71027451157673 is an equidigital number, since it uses as much as digits as its factorization.

71027451157673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8643600, while the sum is 56.

The spelling of 71027451157673 in words is "seventy-one trillion, twenty-seven billion, four hundred fifty-one million, one hundred fifty-seven thousand, six hundred seventy-three".