71892367069 has 2 divisors, whose sum is σ = 71892367070. Its totient is φ = 71892367068.

The previous prime is 71892367061. The next prime is 71892367081. The reversal of 71892367069 is 96076329817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71561600100 + 330766969 = 267510^2 + 18187^2 .

It is a cyclic number.

It is not a de Polignac number, because 71892367069 - 2³ = 71892367061 is a prime.

It is a super-2 number, since 2×71892367069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71892367061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35946183534 + 35946183535.

It is an arithmetic number, because the mean of its divisors is an integer number (35946183535).

Almost surely, 2^71892367069 is an apocalyptic number.

It is an amenable number.

71892367069 is a deficient number, since it is larger than the sum of its proper divisors (1).

71892367069 is an equidigital number, since it uses as much as digits as its factorization.

71892367069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6858432, while the sum is 58.

The spelling of 71892367069 in words is "seventy-one billion, eight hundred ninety-two million, three hundred sixty-seven thousand, sixty-nine".