61124414440 has 32 divisors (see below), whose sum is σ = 137546453160. Its totient is φ = 24446828800.

The previous prime is 61124414423. The next prime is 61124414443. The reversal of 61124414440 is 4441442116.

It can be written as a sum of positive squares in 4 ways, for example, as 18078953764 + 43045460676 = 134458^2 + 207474^2 .

It is not an unprimeable number, because it can be changed into a prime (61124414443) 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 7 ways as a sum of consecutive naturals, for example, 262230 + ... + 437050.

Almost surely, 2^61124414440 is an apocalyptic number.

It is an amenable number.

61124414440 is an abundant number, since it is smaller than the sum of its proper divisors (76422038720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61124414440 is a wasteful number, since it uses less digits than its factorization.

61124414440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183573 (or 183569 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 61124414440 its reverse (4441442116), we get a palindrome (65565856556).

The spelling of 61124414440 in words is "sixty-one billion, one hundred twenty-four million, four hundred fourteen thousand, four hundred forty".