7611417561 has 16 divisors (see below), whose sum is σ = 11073763008. Its totient is φ = 4611892800.

The previous prime is 7611417553. The next prime is 7611417581. The reversal of 7611417561 is 1657141167.

It is not a de Polignac number, because 7611417561 - 2³ = 7611417553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7611417551) 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, 128151 + ... + 177891.

It is an arithmetic number, because the mean of its divisors is an integer number (692110188).

Almost surely, 2^7611417561 is an apocalyptic number.

It is an amenable number.

7611417561 is a deficient number, since it is larger than the sum of its proper divisors (3462345447).

7611417561 is a wasteful number, since it uses less digits than its factorization.

7611417561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54392.

The product of its digits is 35280, while the sum is 39.

The square root of 7611417561 is about 87243.4384982619. The cubic root of 7611417561 is about 1967.0792142518.

The spelling of 7611417561 in words is "seven billion, six hundred eleven million, four hundred seventeen thousand, five hundred sixty-one".