61344140632 has 32 divisors (see below), whose sum is σ = 117843102720. Its totient is φ = 29919535360.

The previous prime is 61344140621. The next prime is 61344140653. The reversal of 61344140632 is 23604144316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3795753 + ... + 3811879.

It is an arithmetic number, because the mean of its divisors is an integer number (3682596960).

Almost surely, 2^61344140632 is an apocalyptic number.

It is an amenable number.

61344140632 is a deficient number, since it is larger than the sum of its proper divisors (56498962088).

61344140632 is a wasteful number, since it uses less digits than its factorization.

61344140632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27771 (or 27767 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 61344140632 its reverse (23604144316), we get a palindrome (84948284948).

The spelling of 61344140632 in words is "sixty-one billion, three hundred forty-four million, one hundred forty thousand, six hundred thirty-two".