61024789109 has 16 divisors (see below), whose sum is σ = 65412966528. Its totient is φ = 56725757952.

The previous prime is 61024789097. The next prime is 61024789121. The reversal of 61024789109 is 90198742016.

It is an interprime number because it is at equal distance from previous prime (61024789097) and next prime (61024789121).

It is a cyclic number.

It is not a de Polignac number, because 61024789109 - 2⁴ = 61024789093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61024789909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8359349 + ... + 8366645.

It is an arithmetic number, because the mean of its divisors is an integer number (4088310408).

Almost surely, 2^61024789109 is an apocalyptic number.

It is an amenable number.

61024789109 is a deficient number, since it is larger than the sum of its proper divisors (4388177419).

61024789109 is a wasteful number, since it uses less digits than its factorization.

61024789109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13324.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 61024789109 in words is "sixty-one billion, twenty-four million, seven hundred eighty-nine thousand, one hundred nine".