61059077887 has 2 divisors, whose sum is σ = 61059077888. Its totient is φ = 61059077886.

The previous prime is 61059077879. The next prime is 61059077921. The reversal of 61059077887 is 78877095016.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61059077887 - 2³ = 61059077879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61059077687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30529538943 + 30529538944.

It is an arithmetic number, because the mean of its divisors is an integer number (30529538944).

Almost surely, 2^61059077887 is an apocalyptic number.

61059077887 is a deficient number, since it is larger than the sum of its proper divisors (1).

61059077887 is an equidigital number, since it uses as much as digits as its factorization.

61059077887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 58.

The spelling of 61059077887 in words is "sixty-one billion, fifty-nine million, seventy-seven thousand, eight hundred eighty-seven".