71883674881 has 2 divisors, whose sum is σ = 71883674882. Its totient is φ = 71883674880.

The previous prime is 71883674809. The next prime is 71883674899. The reversal of 71883674881 is 18847638817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63197434881 + 8686240000 = 251391^2 + 93200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71883674881 is a prime.

It is a super-2 number, since 2×71883674881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71883674981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35941837440 + 35941837441.

It is an arithmetic number, because the mean of its divisors is an integer number (35941837441).

Almost surely, 2^71883674881 is an apocalyptic number.

It is an amenable number.

71883674881 is a deficient number, since it is larger than the sum of its proper divisors (1).

71883674881 is an equidigital number, since it uses as much as digits as its factorization.

71883674881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14450688, while the sum is 61.

The spelling of 71883674881 in words is "seventy-one billion, eight hundred eighty-three million, six hundred seventy-four thousand, eight hundred eighty-one".