71143766076047 has 4 divisors (see below), whose sum is σ = 81307161229776. Its totient is φ = 60980370922320.

The previous prime is 71143766076041. The next prime is 71143766076083. The reversal of 71143766076047 is 74067066734117.

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 71143766076047 - 2²² = 71143761881743 is a prime.

It is a super-2 number, since 2×71143766076047² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71143766076041) 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, 5081697576854 + ... + 5081697576867.

It is an arithmetic number, because the mean of its divisors is an integer number (20326790307444).

Almost surely, 2^{71143766076047} is an apocalyptic number.

71143766076047 is a deficient number, since it is larger than the sum of its proper divisors (10163395153729).

71143766076047 is a wasteful number, since it uses less digits than its factorization.

71143766076047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163395153728.

The product of its (nonzero) digits is 24893568, while the sum is 59.

The spelling of 71143766076047 in words is "seventy-one trillion, one hundred forty-three billion, seven hundred sixty-six million, seventy-six thousand, forty-seven".