71386006705 has 32 divisors (see below), whose sum is σ = 99280708128. Its totient is φ = 48801484800.

The previous prime is 71386006697. The next prime is 71386006709. The reversal of 71386006705 is 50760068317.

It can be written as a sum of positive squares in 16 ways, for example, as 29424942369 + 41961064336 = 171537^2 + 204844^2 .

It is not a de Polignac number, because 71386006705 - 2³ = 71386006697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71386006709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 462126 + ... + 596935.

It is an arithmetic number, because the mean of its divisors is an integer number (3102522129).

Almost surely, 2^71386006705 is an apocalyptic number.

It is an amenable number.

71386006705 is a deficient number, since it is larger than the sum of its proper divisors (27894701423).

71386006705 is a wasteful number, since it uses less digits than its factorization.

71386006705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059157.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 71386006705 in words is "seventy-one billion, three hundred eighty-six million, six thousand, seven hundred five".