61461939969441 has 24 divisors (see below), whose sum is σ = 97047986428224. Its totient is φ = 37173172548960.

The previous prime is 61461939969361. The next prime is 61461939969473. The reversal of 61461939969441 is 14496993916416.

61461939969441 is a `hidden beast` number, since 6 + 1 + 4 + 6 + 1 + 93 + 9 + 96 + 9 + 441 = 666.

It is not a de Polignac number, because 61461939969441 - 2⁹ = 61461939968929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61461939969441.

It is not an unprimeable number, because it can be changed into a prime (61461939969491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 637351866 + ... + 637448291.

It is an arithmetic number, because the mean of its divisors is an integer number (4043666101176).

Almost surely, 2^{61461939969441} is an apocalyptic number.

It is an amenable number.

61461939969441 is a deficient number, since it is larger than the sum of its proper divisors (35586046458783).

61461939969441 is a wasteful number, since it uses less digits than its factorization.

61461939969441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274800661 (or 1274800658 counting only the distinct ones).

The product of its digits is 272097792, while the sum is 72.

The spelling of 61461939969441 in words is "sixty-one trillion, four hundred sixty-one billion, nine hundred thirty-nine million, nine hundred sixty-nine thousand, four hundred forty-one".