61380632577 has 16 divisors (see below), whose sum is σ = 89774193600. Its totient is φ = 36994852800.

The previous prime is 61380632561. The next prime is 61380632587. The reversal of 61380632577 is 77523608316.

It is not a de Polignac number, because 61380632577 - 2⁴ = 61380632561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61380632587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5132202 + ... + 5144147.

It is an arithmetic number, because the mean of its divisors is an integer number (5610887100).

Almost surely, 2^61380632577 is an apocalyptic number.

It is an amenable number.

61380632577 is a deficient number, since it is larger than the sum of its proper divisors (28393561023).

61380632577 is a wasteful number, since it uses less digits than its factorization.

61380632577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10276544.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 61380632577 in words is "sixty-one billion, three hundred eighty million, six hundred thirty-two thousand, five hundred seventy-seven".