61004815029 has 24 divisors (see below), whose sum is σ = 90974457600. Its totient is φ = 39351942720.

The previous prime is 61004815007. The next prime is 61004815087. The reversal of 61004815029 is 92051840016.

61004815029 is a `hidden beast` number, since 6 + 100 + 48 + 1 + 502 + 9 = 666.

It is not a de Polignac number, because 61004815029 - 2²⁸ = 60736379573 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61004814984 and 61004815002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61004814029) 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 23 ways as a sum of consecutive naturals, for example, 2490162 + ... + 2514540.

It is an arithmetic number, because the mean of its divisors is an integer number (3790602400).

Almost surely, 2^61004815029 is an apocalyptic number.

It is an amenable number.

61004815029 is a deficient number, since it is larger than the sum of its proper divisors (29969642571).

61004815029 is a wasteful number, since it uses less digits than its factorization.

61004815029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33385 (or 33382 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 61004815029 in words is "sixty-one billion, four million, eight hundred fifteen thousand, twenty-nine".