61109284699 has 2 divisors, whose sum is σ = 61109284700. Its totient is φ = 61109284698.

The previous prime is 61109284667. The next prime is 61109284763. The reversal of 61109284699 is 99648290116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61109284699 - 2⁵ = 61109284667 is a prime.

It is not a weakly prime, because it can be changed into another prime (61109284199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30554642349 + 30554642350.

It is an arithmetic number, because the mean of its divisors is an integer number (30554642350).

Almost surely, 2^61109284699 is an apocalyptic number.

61109284699 is a deficient number, since it is larger than the sum of its proper divisors (1).

61109284699 is an equidigital number, since it uses as much as digits as its factorization.

61109284699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 55.

The spelling of 61109284699 in words is "sixty-one billion, one hundred nine million, two hundred eighty-four thousand, six hundred ninety-nine".