61075587071 has 2 divisors, whose sum is σ = 61075587072. Its totient is φ = 61075587070.

The previous prime is 61075587059. The next prime is 61075587103. The reversal of 61075587071 is 17078557016.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61075587071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61075587271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30537793535 + 30537793536.

It is an arithmetic number, because the mean of its divisors is an integer number (30537793536).

Almost surely, 2^61075587071 is an apocalyptic number.

61075587071 is a deficient number, since it is larger than the sum of its proper divisors (1).

61075587071 is an equidigital number, since it uses as much as digits as its factorization.

61075587071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 411600, while the sum is 47.

The spelling of 61075587071 in words is "sixty-one billion, seventy-five million, five hundred eighty-seven thousand, seventy-one".