7929660961 has 4 divisors (see below), whose sum is σ = 7982175424. Its totient is φ = 7877146500.

The previous prime is 7929660943. The next prime is 7929660979. The reversal of 7929660961 is 1690669297.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1690669297 = 20563 ⋅82219.

It is an interprime number because it is at equal distance from previous prime (7929660943) and next prime (7929660979).

It is a cyclic number.

It is not a de Polignac number, because 7929660961 - 2¹³ = 7929652769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7929660911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26257005 + ... + 26257306.

It is an arithmetic number, because the mean of its divisors is an integer number (1995543856).

Almost surely, 2^7929660961 is an apocalyptic number.

It is an amenable number.

7929660961 is a deficient number, since it is larger than the sum of its proper divisors (52514463).

7929660961 is a wasteful number, since it uses less digits than its factorization.

7929660961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52514462.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The square root of 7929660961 is about 89048.6437909079. The cubic root of 7929660961 is about 1994.1211499090.

The spelling of 7929660961 in words is "seven billion, nine hundred twenty-nine million, six hundred sixty thousand, nine hundred sixty-one".