61354962859 has 2 divisors, whose sum is σ = 61354962860. Its totient is φ = 61354962858.

The previous prime is 61354962797. The next prime is 61354962923. The reversal of 61354962859 is 95826945316.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61354962859 - 2⁷ = 61354962731 is a prime.

It is not a weakly prime, because it can be changed into another prime (61354962359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30677481429 + 30677481430.

It is an arithmetic number, because the mean of its divisors is an integer number (30677481430).

Almost surely, 2^61354962859 is an apocalyptic number.

61354962859 is a deficient number, since it is larger than the sum of its proper divisors (1).

61354962859 is an equidigital number, since it uses as much as digits as its factorization.

61354962859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13996800, while the sum is 58.

The spelling of 61354962859 in words is "sixty-one billion, three hundred fifty-four million, nine hundred sixty-two thousand, eight hundred fifty-nine".