71388292319 has 2 divisors, whose sum is σ = 71388292320. Its totient is φ = 71388292318.

The previous prime is 71388292307. The next prime is 71388292361. The reversal of 71388292319 is 91329288317.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71388292319 - 2²⁰ = 71387243743 is a prime.

It is a super-2 number, since 2×71388292319² (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 (71388292519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35694146159 + 35694146160.

It is an arithmetic number, because the mean of its divisors is an integer number (35694146160).

Almost surely, 2^71388292319 is an apocalyptic number.

71388292319 is a deficient number, since it is larger than the sum of its proper divisors (1).

71388292319 is an equidigital number, since it uses as much as digits as its factorization.

71388292319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 53.

The spelling of 71388292319 in words is "seventy-one billion, three hundred eighty-eight million, two hundred ninety-two thousand, three hundred nineteen".