71738860027 has 2 divisors, whose sum is σ = 71738860028. Its totient is φ = 71738860026.

The previous prime is 71738860021. The next prime is 71738860049. The reversal of 71738860027 is 72006883717.

It is a weak prime.

It is an emirp because it is prime and its reverse (72006883717) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71738860027 is a prime.

It is not a weakly prime, because it can be changed into another prime (71738860021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35869430013 + 35869430014.

It is an arithmetic number, because the mean of its divisors is an integer number (35869430014).

Almost surely, 2^71738860027 is an apocalyptic number.

71738860027 is a deficient number, since it is larger than the sum of its proper divisors (1).

71738860027 is an equidigital number, since it uses as much as digits as its factorization.

71738860027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 71738860027 in words is "seventy-one billion, seven hundred thirty-eight million, eight hundred sixty thousand, twenty-seven".