61245394559 has 8 divisors (see below), whose sum is σ = 63485583360. Its totient is φ = 59021739000.

The previous prime is 61245394517. The next prime is 61245394577. The reversal of 61245394559 is 95549354216.

It is a happy number.

61245394559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61245394559 - 2⁸ = 61245394303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61245394559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61245394579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4125767 + ... + 4140584.

It is an arithmetic number, because the mean of its divisors is an integer number (7935697920).

Almost surely, 2^61245394559 is an apocalyptic number.

61245394559 is a deficient number, since it is larger than the sum of its proper divisors (2240188801).

61245394559 is a wasteful number, since it uses less digits than its factorization.

61245394559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8266621.

The product of its digits is 5832000, while the sum is 53.

The spelling of 61245394559 in words is "sixty-one billion, two hundred forty-five million, three hundred ninety-four thousand, five hundred fifty-nine".