61523235071 has 2 divisors, whose sum is σ = 61523235072. Its totient is φ = 61523235070.

The previous prime is 61523235031. The next prime is 61523235073. The reversal of 61523235071 is 17053232516.

61523235071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61523235071 - 2³⁴ = 44343365887 is a prime.

Together with 61523235073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61523235073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30761617535 + 30761617536.

It is an arithmetic number, because the mean of its divisors is an integer number (30761617536).

Almost surely, 2^61523235071 is an apocalyptic number.

61523235071 is a deficient number, since it is larger than the sum of its proper divisors (1).

61523235071 is an equidigital number, since it uses as much as digits as its factorization.

61523235071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 35.

Adding to 61523235071 its reverse (17053232516), we get a palindrome (78576467587).

The spelling of 61523235071 in words is "sixty-one billion, five hundred twenty-three million, two hundred thirty-five thousand, seventy-one".