61130140079 has 2 divisors, whose sum is σ = 61130140080. Its totient is φ = 61130140078.

The previous prime is 61130140021. The next prime is 61130140109. The reversal of 61130140079 is 97004103116.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61130140079 - 2⁸ = 61130139823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61130140879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30565070039 + 30565070040.

It is an arithmetic number, because the mean of its divisors is an integer number (30565070040).

Almost surely, 2^61130140079 is an apocalyptic number.

61130140079 is a deficient number, since it is larger than the sum of its proper divisors (1).

61130140079 is an equidigital number, since it uses as much as digits as its factorization.

61130140079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The spelling of 61130140079 in words is "sixty-one billion, one hundred thirty million, one hundred forty thousand, seventy-nine".