71148241221251 has 32 divisors (see below), whose sum is σ = 74833031331840. Its totient is φ = 67551436221696.

The previous prime is 71148241221229. The next prime is 71148241221271. The reversal of 71148241221251 is 15212214284117.

It is a cyclic number.

It is not a de Polignac number, because 71148241221251 - 2³⁴ = 71131061352067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71148241221199 and 71148241221208.

It is not an unprimeable number, because it can be changed into a prime (71148241221271) 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, 1120642430 + ... + 1120705916.

It is an arithmetic number, because the mean of its divisors is an integer number (2338532229120).

Almost surely, 2^{71148241221251} is an apocalyptic number.

71148241221251 is a deficient number, since it is larger than the sum of its proper divisors (3684790110589).

71148241221251 is a wasteful number, since it uses less digits than its factorization.

71148241221251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65163.

The product of its digits is 71680, while the sum is 41.

The spelling of 71148241221251 in words is "seventy-one trillion, one hundred forty-eight billion, two hundred forty-one million, two hundred twenty-one thousand, two hundred fifty-one".