61473066745 has 16 divisors (see below), whose sum is σ = 74006277120. Its totient is φ = 49019503104.

The previous prime is 61473066737. The next prime is 61473066751. The reversal of 61473066745 is 54766037416.

It is a cyclic number.

It is not a de Polignac number, because 61473066745 - 2³ = 61473066737 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 5746792 + ... + 5757478.

It is an arithmetic number, because the mean of its divisors is an integer number (4625392320).

Almost surely, 2^61473066745 is an apocalyptic number.

It is an amenable number.

61473066745 is a deficient number, since it is larger than the sum of its proper divisors (12533210375).

61473066745 is a wasteful number, since it uses less digits than its factorization.

61473066745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14304.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 61473066745 in words is "sixty-one billion, four hundred seventy-three million, sixty-six thousand, seven hundred forty-five".