71401065736243 has 8 divisors (see below), whose sum is σ = 71645101759728. Its totient is φ = 71157032069664.

The previous prime is 71401065736193. The next prime is 71401065736261. The reversal of 71401065736243 is 34263756010417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71401065736243 - 2²⁹ = 71400528865331 is a prime.

It is a super-2 number, since 2×71401065736243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71401065736043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77962380 + ... + 78872902.

It is an arithmetic number, because the mean of its divisors is an integer number (8955637719966).

Almost surely, 2^{71401065736243} is an apocalyptic number.

71401065736243 is a deficient number, since it is larger than the sum of its proper divisors (244036023485).

71401065736243 is a wasteful number, since it uses less digits than its factorization.

71401065736243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178453.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 71401065736243 in words is "seventy-one trillion, four hundred one billion, sixty-five million, seven hundred thirty-six thousand, two hundred forty-three".