71154965441 has 4 divisors (see below), whose sum is σ = 81319960512. Its totient is φ = 60989970372.

The previous prime is 71154965437. The next prime is 71154965459. The reversal of 71154965441 is 14456945117.

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: 14456945117 = 8501 ⋅1700617.

It is a cyclic number.

It is not a de Polignac number, because 71154965441 - 2² = 71154965437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71154965341) 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, 5082497525 + ... + 5082497538.

It is an arithmetic number, because the mean of its divisors is an integer number (20329990128).

Almost surely, 2^71154965441 is an apocalyptic number.

It is an amenable number.

71154965441 is a deficient number, since it is larger than the sum of its proper divisors (10164995071).

71154965441 is a wasteful number, since it uses less digits than its factorization.

71154965441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10164995070.

The product of its digits is 604800, while the sum is 47.

The spelling of 71154965441 in words is "seventy-one billion, one hundred fifty-four million, nine hundred sixty-five thousand, four hundred forty-one".