7698780878967 has 36 divisors (see below), whose sum is σ = 11823246063720. Its totient is φ = 4821603458112.

The previous prime is 7698780878953. The next prime is 7698780878993.

7698780878967 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7698780878967 - 2⁷ = 7698780878839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7698780878167) 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 35 ways as a sum of consecutive naturals, for example, 10415973 + ... + 11130590.

It is an arithmetic number, because the mean of its divisors is an integer number (328423501770).

Almost surely, 2^{7698780878967} is an apocalyptic number.

7698780878967 is a deficient number, since it is larger than the sum of its proper divisors (4124465184753).

7698780878967 is a wasteful number, since it uses less digits than its factorization.

7698780878967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21546672 (or 21546632 counting only the distinct ones).

The product of its (nonzero) digits is 28677390336, while the sum is 90.

The spelling of 7698780878967 in words is "seven trillion, six hundred ninety-eight billion, seven hundred eighty million, eight hundred seventy-eight thousand, nine hundred sixty-seven".