71078155293 has 4 divisors (see below), whose sum is σ = 94770873728. Its totient is φ = 47385436860.

The previous prime is 71078155273. The next prime is 71078155327. The reversal of 71078155293 is 39255187017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39255187017 = 3 ⋅13085062339.

It is not a de Polignac number, because 71078155293 - 2⁹ = 71078154781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71078155223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11846359213 + ... + 11846359218.

It is an arithmetic number, because the mean of its divisors is an integer number (23692718432).

Almost surely, 2^71078155293 is an apocalyptic number.

It is an amenable number.

71078155293 is a deficient number, since it is larger than the sum of its proper divisors (23692718435).

71078155293 is a wasteful number, since it uses less digits than its factorization.

71078155293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23692718434.

The product of its (nonzero) digits is 529200, while the sum is 48.

The spelling of 71078155293 in words is "seventy-one billion, seventy-eight million, one hundred fifty-five thousand, two hundred ninety-three".