7506678961 has 4 divisors (see below), whose sum is σ = 7531130992. Its totient is φ = 7482226932.

The previous prime is 7506678937. The next prime is 7506678997. The reversal of 7506678961 is 1698766057.

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.

It is a cyclic number.

It is not a de Polignac number, because 7506678961 - 2⁵ = 7506678929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7506670961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12225555 + ... + 12226168.

It is an arithmetic number, because the mean of its divisors is an integer number (1882782748).

Almost surely, 2^7506678961 is an apocalyptic number.

It is an amenable number.

7506678961 is a deficient number, since it is larger than the sum of its proper divisors (24452031).

7506678961 is a wasteful number, since it uses less digits than its factorization.

7506678961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24452030.

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 7506678961 is about 86641.0927966632. The cubic root of 7506678961 is about 1958.0146981514.

The spelling of 7506678961 in words is "seven billion, five hundred six million, six hundred seventy-eight thousand, nine hundred sixty-one".