7409919561 has 32 divisors (see below), whose sum is σ = 11019165696. Its totient is φ = 4390608000.

The previous prime is 7409919469. The next prime is 7409919571. The reversal of 7409919561 is 1659199047.

It is not a de Polignac number, because 7409919561 - 2¹⁴ = 7409903177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7409919571) 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 31 ways as a sum of consecutive naturals, for example, 1907341 + ... + 1911221.

It is an arithmetic number, because the mean of its divisors is an integer number (344348928).

Almost surely, 2^7409919561 is an apocalyptic number.

It is an amenable number.

7409919561 is a deficient number, since it is larger than the sum of its proper divisors (3609246135).

7409919561 is a wasteful number, since it uses less digits than its factorization.

7409919561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5173.

The product of its (nonzero) digits is 612360, while the sum is 51.

The square root of 7409919561 is about 86080.8896387578. The cubic root of 7409919561 is about 1949.5655013514.

The spelling of 7409919561 in words is "seven billion, four hundred nine million, nine hundred nineteen thousand, five hundred sixty-one".