61444733470705 has 32 divisors (see below), whose sum is σ = 79938564975360. Its totient is φ = 45070284798720.

The previous prime is 61444733470699. The next prime is 61444733470727. The reversal of 61444733470705 is 50707433744416.

It is a happy number.

It is not a de Polignac number, because 61444733470705 - 2³³ = 61436143536113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16780356 + ... + 20111434.

It is an arithmetic number, because the mean of its divisors is an integer number (2498080155480).

Almost surely, 2^{61444733470705} is an apocalyptic number.

61444733470705 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61444733470705 is a deficient number, since it is larger than the sum of its proper divisors (18493831504655).

61444733470705 is a wasteful number, since it uses less digits than its factorization.

61444733470705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333001.

The product of its (nonzero) digits is 23708160, while the sum is 55.

The spelling of 61444733470705 in words is "sixty-one trillion, four hundred forty-four billion, seven hundred thirty-three million, four hundred seventy thousand, seven hundred five".