7956978735 has 32 divisors (see below), whose sum is σ = 12843306432. Its totient is φ = 4206504960.

The previous prime is 7956978721. The next prime is 7956978739. The reversal of 7956978735 is 5378796597.

It is not a de Polignac number, because 7956978735 - 2⁷ = 7956978607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7956978739) 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 31 ways as a sum of consecutive naturals, for example, 813675 + ... + 823395.

It is an arithmetic number, because the mean of its divisors is an integer number (401353326).

Almost surely, 2^7956978735 is an apocalyptic number.

7956978735 is a deficient number, since it is larger than the sum of its proper divisors (4886327697).

7956978735 is a wasteful number, since it uses less digits than its factorization.

7956978735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10203.

The product of its digits is 100018800, while the sum is 66.

The square root of 7956978735 is about 89201.8987185811. The cubic root of 7956978735 is about 1996.4084488241.

The spelling of 7956978735 in words is "seven billion, nine hundred fifty-six million, nine hundred seventy-eight thousand, seven hundred thirty-five".