61673806087 has 2 divisors, whose sum is σ = 61673806088. Its totient is φ = 61673806086.

The previous prime is 61673806063. The next prime is 61673806109. The reversal of 61673806087 is 78060837616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61673806087 - 2³¹ = 59526322439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61673806487) 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, 30836903043 + 30836903044.

It is an arithmetic number, because the mean of its divisors is an integer number (30836903044).

Almost surely, 2^61673806087 is an apocalyptic number.

61673806087 is a deficient number, since it is larger than the sum of its proper divisors (1).

61673806087 is an equidigital number, since it uses as much as digits as its factorization.

61673806087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 61673806087 in words is "sixty-one billion, six hundred seventy-three million, eight hundred six thousand, eighty-seven".