71434664311 has 8 divisors (see below), whose sum is σ = 73925376624. Its totient is φ = 68973428160.

The previous prime is 71434664299. The next prime is 71434664317. The reversal of 71434664311 is 11346643417.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 71434664311 - 2¹⁹ = 71434140023 is a prime.

It is a super-2 number, since 2×71434664311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71434664317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7364110 + ... + 7373803.

It is an arithmetic number, because the mean of its divisors is an integer number (9240672078).

Almost surely, 2^71434664311 is an apocalyptic number.

71434664311 is a deficient number, since it is larger than the sum of its proper divisors (2490712313).

71434664311 is a wasteful number, since it uses less digits than its factorization.

71434664311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14738081.

The product of its digits is 145152, while the sum is 40.

The spelling of 71434664311 in words is "seventy-one billion, four hundred thirty-four million, six hundred sixty-four thousand, three hundred eleven".