7761026049 has 16 divisors (see below), whose sum is σ = 12207820800. Its totient is φ = 4291811280.

The previous prime is 7761026047. The next prime is 7761026071. The reversal of 7761026049 is 9406201677.

It is not a de Polignac number, because 7761026049 - 2¹ = 7761026047 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7761026049.

It is not an unprimeable number, because it can be changed into a prime (7761026041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5960199 + ... + 5961500.

It is an arithmetic number, because the mean of its divisors is an integer number (762988800).

Almost surely, 2^7761026049 is an apocalyptic number.

It is an amenable number.

7761026049 is a deficient number, since it is larger than the sum of its proper divisors (4446794751).

7761026049 is a wasteful number, since it uses less digits than its factorization.

7761026049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11921740.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 7761026049 is about 88096.6858003183. The cubic root of 7761026049 is about 1979.8838527421.

The spelling of 7761026049 in words is "seven billion, seven hundred sixty-one million, twenty-six thousand, forty-nine".