71046744389 has 2 divisors, whose sum is σ = 71046744390. Its totient is φ = 71046744388.

The previous prime is 71046744371. The next prime is 71046744409. The reversal of 71046744389 is 98344764017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64952600164 + 6094144225 = 254858^2 + 78065^2 .

It is a cyclic number.

It is not a de Polignac number, because 71046744389 - 2⁸ = 71046744133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71046744389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71046794389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35523372194 + 35523372195.

It is an arithmetic number, because the mean of its divisors is an integer number (35523372195).

Almost surely, 2^71046744389 is an apocalyptic number.

It is an amenable number.

71046744389 is a deficient number, since it is larger than the sum of its proper divisors (1).

71046744389 is an equidigital number, since it uses as much as digits as its factorization.

71046744389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 71046744389 in words is "seventy-one billion, forty-six million, seven hundred forty-four thousand, three hundred eighty-nine".