71732676649 has 2 divisors, whose sum is σ = 71732676650. Its totient is φ = 71732676648.

The previous prime is 71732676623. The next prime is 71732676679. The reversal of 71732676649 is 94667623717.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37851648025 + 33881028624 = 194555^2 + 184068^2 .

It is a cyclic number.

It is not a de Polignac number, because 71732676649 - 2⁹ = 71732676137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71732676593 and 71732676602.

It is not a weakly prime, because it can be changed into another prime (71732676679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35866338324 + 35866338325.

It is an arithmetic number, because the mean of its divisors is an integer number (35866338325).

Almost surely, 2^71732676649 is an apocalyptic number.

It is an amenable number.

71732676649 is a deficient number, since it is larger than the sum of its proper divisors (1).

71732676649 is an equidigital number, since it uses as much as digits as its factorization.

71732676649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16003008, while the sum is 58.

The spelling of 71732676649 in words is "seventy-one billion, seven hundred thirty-two million, six hundred seventy-six thousand, six hundred forty-nine".