71226272267 has 4 divisors (see below), whose sum is σ = 71227720680. Its totient is φ = 71224823856.

The previous prime is 71226272263. The next prime is 71226272309. The reversal of 71226272267 is 76227262217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71226272267 - 2² = 71226272263 is a prime.

It is a super-2 number, since 2×71226272267² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71226272263) 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, 647753 + ... + 749690.

It is an arithmetic number, because the mean of its divisors is an integer number (17806930170).

Almost surely, 2^71226272267 is an apocalyptic number.

71226272267 is a deficient number, since it is larger than the sum of its proper divisors (1448413).

71226272267 is a wasteful number, since it uses less digits than its factorization.

71226272267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448412.

The product of its digits is 395136, while the sum is 44.

The spelling of 71226272267 in words is "seventy-one billion, two hundred twenty-six million, two hundred seventy-two thousand, two hundred sixty-seven".