61277599577279 has 2 divisors, whose sum is σ = 61277599577280. Its totient is φ = 61277599577278.

The previous prime is 61277599577209. The next prime is 61277599577287. The reversal of 61277599577279 is 97277599577216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61277599577279 - 2¹⁶ = 61277599511743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61277599577197 and 61277599577206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61277599577209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30638799788639 + 30638799788640.

It is an arithmetic number, because the mean of its divisors is an integer number (30638799788640).

Almost surely, 2^{61277599577279} is an apocalyptic number.

61277599577279 is a deficient number, since it is larger than the sum of its proper divisors (1).

61277599577279 is an equidigital number, since it uses as much as digits as its factorization.

61277599577279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7351381800, while the sum is 83.

The spelling of 61277599577279 in words is "sixty-one trillion, two hundred seventy-seven billion, five hundred ninety-nine million, five hundred seventy-seven thousand, two hundred seventy-nine".