61026082749 has 24 divisors (see below), whose sum is σ = 94565758560. Its totient is φ = 39281152176.

The previous prime is 61026082739. The next prime is 61026082753. The reversal of 61026082749 is 94728062016.

It is a happy number.

61026082749 is a `hidden beast` number, since 6 + 10 + 2 + 608 + 27 + 4 + 9 = 666.

It is not a de Polignac number, because 61026082749 - 2⁵ = 61026082717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61026082739) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4322887 + ... + 4336980.

It is an arithmetic number, because the mean of its divisors is an integer number (3940239940).

Almost surely, 2^61026082749 is an apocalyptic number.

It is an amenable number.

61026082749 is a deficient number, since it is larger than the sum of its proper divisors (33539675811).

61026082749 is an equidigital number, since it uses as much as digits as its factorization.

61026082749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8659911 (or 8659899 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 61026082749 in words is "sixty-one billion, twenty-six million, eighty-two thousand, seven hundred forty-nine".