71265381945 has 8 divisors (see below), whose sum is σ = 114024611136. Its totient is φ = 38008203696.

The previous prime is 71265381917. The next prime is 71265381989. The reversal of 71265381945 is 54918356217.

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

It is not a de Polignac number, because 71265381945 - 2⁶ = 71265381881 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2375512717 + ... + 2375512746.

It is an arithmetic number, because the mean of its divisors is an integer number (14253076392).

Almost surely, 2^71265381945 is an apocalyptic number.

It is an amenable number.

71265381945 is a deficient number, since it is larger than the sum of its proper divisors (42759229191).

71265381945 is a wasteful number, since it uses less digits than its factorization.

71265381945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4751025471.

The product of its digits is 1814400, while the sum is 51.

The spelling of 71265381945 in words is "seventy-one billion, two hundred sixty-five million, three hundred eighty-one thousand, nine hundred forty-five".