61541413603 has 2 divisors, whose sum is σ = 61541413604. Its totient is φ = 61541413602.

The previous prime is 61541413589. The next prime is 61541413673. The reversal of 61541413603 is 30631414516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61541413603 - 2¹³ = 61541405411 is a prime.

It is not a weakly prime, because it can be changed into another prime (61541413673) 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, 30770706801 + 30770706802.

It is an arithmetic number, because the mean of its divisors is an integer number (30770706802).

Almost surely, 2^61541413603 is an apocalyptic number.

61541413603 is a deficient number, since it is larger than the sum of its proper divisors (1).

61541413603 is an equidigital number, since it uses as much as digits as its factorization.

61541413603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 61541413603 in words is "sixty-one billion, five hundred forty-one million, four hundred thirteen thousand, six hundred three".