7641097129 has 4 divisors (see below), whose sum is σ = 7649771220. Its totient is φ = 7632423040.

The previous prime is 7641097111. The next prime is 7641097141. The reversal of 7641097129 is 9217901467.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3027970729 + 4613126400 = 55027^2 + 67920^2 .

It is a cyclic number.

It is not a de Polignac number, because 7641097129 - 2²³ = 7632708521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7641097159) 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 3 ways as a sum of consecutive naturals, for example, 4335724 + ... + 4337485.

It is an arithmetic number, because the mean of its divisors is an integer number (1912442805).

Almost surely, 2^7641097129 is an apocalyptic number.

It is an amenable number.

7641097129 is a deficient number, since it is larger than the sum of its proper divisors (8674091).

7641097129 is an equidigital number, since it uses as much as digits as its factorization.

7641097129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8674090.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 7641097129 is about 87413.3692806770. The cubic root of 7641097129 is about 1969.6326738318.

The spelling of 7641097129 in words is "seven billion, six hundred forty-one million, ninety-seven thousand, one hundred twenty-nine".