61450500099787 has 2 divisors, whose sum is σ = 61450500099788. Its totient is φ = 61450500099786.

The previous prime is 61450500099743. The next prime is 61450500099799. The reversal of 61450500099787 is 78799000505416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61450500099787 - 2²³ = 61450491711179 is a prime.

It is not a weakly prime, because it can be changed into another prime (61453500099787) 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, 30725250049893 + 30725250049894.

It is an arithmetic number, because the mean of its divisors is an integer number (30725250049894).

Almost surely, 2^{61450500099787} is an apocalyptic number.

61450500099787 is a deficient number, since it is larger than the sum of its proper divisors (1).

61450500099787 is an equidigital number, since it uses as much as digits as its factorization.

61450500099787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19051200, while the sum is 61.

The spelling of 61450500099787 in words is "sixty-one trillion, four hundred fifty billion, five hundred million, ninety-nine thousand, seven hundred eighty-seven".