71037561319 has 2 divisors, whose sum is σ = 71037561320. Its totient is φ = 71037561318.

The previous prime is 71037561313. The next prime is 71037561443. The reversal of 71037561319 is 91316573017.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71037561319 - 2³ = 71037561311 is a prime.

It is a super-2 number, since 2×71037561319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71037561311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35518780659 + 35518780660.

It is an arithmetic number, because the mean of its divisors is an integer number (35518780660).

Almost surely, 2^71037561319 is an apocalyptic number.

71037561319 is a deficient number, since it is larger than the sum of its proper divisors (1).

71037561319 is an equidigital number, since it uses as much as digits as its factorization.

71037561319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 119070, while the sum is 43.

The spelling of 71037561319 in words is "seventy-one billion, thirty-seven million, five hundred sixty-one thousand, three hundred nineteen".