71272041773 has 4 divisors (see below), whose sum is σ = 71273156640. Its totient is φ = 71270926908.

The previous prime is 71272041769. The next prime is 71272041779. The reversal of 71272041773 is 37714027217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71272041773 - 2² = 71272041769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71272041773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71272041779) 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, 455303 + ... + 591476.

It is an arithmetic number, because the mean of its divisors is an integer number (17818289160).

Almost surely, 2^71272041773 is an apocalyptic number.

It is an amenable number.

71272041773 is a deficient number, since it is larger than the sum of its proper divisors (1114867).

71272041773 is a wasteful number, since it uses less digits than its factorization.

71272041773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114866.

The product of its (nonzero) digits is 115248, while the sum is 41.

The spelling of 71272041773 in words is "seventy-one billion, two hundred seventy-two million, forty-one thousand, seven hundred seventy-three".