61077556679 has 2 divisors, whose sum is σ = 61077556680. Its totient is φ = 61077556678.

The previous prime is 61077556613. The next prime is 61077556717. The reversal of 61077556679 is 97665577016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61077556679 - 2²⁴ = 61060779463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61077556279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30538778339 + 30538778340.

It is an arithmetic number, because the mean of its divisors is an integer number (30538778340).

Almost surely, 2^61077556679 is an apocalyptic number.

61077556679 is a deficient number, since it is larger than the sum of its proper divisors (1).

61077556679 is an equidigital number, since it uses as much as digits as its factorization.

61077556679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16669800, while the sum is 59.

The spelling of 61077556679 in words is "sixty-one billion, seventy-seven million, five hundred fifty-six thousand, six hundred seventy-nine".