61456349368 has 16 divisors (see below), whose sum is σ = 115282199880. Its totient is φ = 30714429408.

The previous prime is 61456349351. The next prime is 61456349399. The reversal of 61456349368 is 86394365416.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1699146 + ... + 1734937.

Almost surely, 2^61456349368 is an apocalyptic number.

It is an amenable number.

61456349368 is a deficient number, since it is larger than the sum of its proper divisors (53825850512).

61456349368 is a wasteful number, since it uses less digits than its factorization.

61456349368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436326 (or 3436322 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 55.

The spelling of 61456349368 in words is "sixty-one billion, four hundred fifty-six million, three hundred forty-nine thousand, three hundred sixty-eight".