61445080364 has 24 divisors (see below), whose sum is σ = 114023378448. Its totient is φ = 28872345600.

The previous prime is 61445080327. The next prime is 61445080373. The reversal of 61445080364 is 46308054416.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 625562 + ... + 717089.

It is an arithmetic number, because the mean of its divisors is an integer number (4750974102).

Almost surely, 2^61445080364 is an apocalyptic number.

It is an amenable number.

61445080364 is a deficient number, since it is larger than the sum of its proper divisors (52578298084).

61445080364 is a wasteful number, since it uses less digits than its factorization.

61445080364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343345 (or 1343343 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 61445080364 in words is "sixty-one billion, four hundred forty-five million, eighty thousand, three hundred sixty-four".