61380410133 has 32 divisors (see below), whose sum is σ = 94560952320. Its totient is φ = 34689441600.

The previous prime is 61380410087. The next prime is 61380410173. The reversal of 61380410133 is 33101408316.

It is not a de Polignac number, because 61380410133 - 2⁸ = 61380409877 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61380410133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61380410173) 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 in 31 ways as a sum of consecutive naturals, for example, 1993308 + ... + 2023866.

It is an arithmetic number, because the mean of its divisors is an integer number (2955029760).

Almost surely, 2^61380410133 is an apocalyptic number.

It is an amenable number.

61380410133 is a deficient number, since it is larger than the sum of its proper divisors (33180542187).

61380410133 is a wasteful number, since it uses less digits than its factorization.

61380410133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31617.

The product of its (nonzero) digits is 5184, while the sum is 30.

Adding to 61380410133 its reverse (33101408316), we get a palindrome (94481818449).

The spelling of 61380410133 in words is "sixty-one billion, three hundred eighty million, four hundred ten thousand, one hundred thirty-three".