61019124385579 has 4 divisors (see below), whose sum is σ = 61019140852800. Its totient is φ = 61019107918360.

The previous prime is 61019124385553. The next prime is 61019124385589. The reversal of 61019124385579 is 97558342191016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61019124385579 - 2³¹ = 61016976901931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61019124385589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212997 + ... + 11049145.

It is an arithmetic number, because the mean of its divisors is an integer number (15254785213200).

It is a 1-persistent number, because it is pandigital, but 2⋅61019124385579 = 122038248771158 is not.

Almost surely, 2^{61019124385579} is an apocalyptic number.

61019124385579 is a deficient number, since it is larger than the sum of its proper divisors (16467221).

61019124385579 is a wasteful number, since it uses less digits than its factorization.

61019124385579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16467220.

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 61019124385579 in words is "sixty-one trillion, nineteen billion, one hundred twenty-four million, three hundred eighty-five thousand, five hundred seventy-nine".