9469878789649 has 4 divisors (see below), whose sum is σ = 9483235460020. Its totient is φ = 9456522119280.

The previous prime is 9469878789643. The next prime is 9469878789661.

9469878789649 is nontrivially palindromic in base 10.

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 4792421505600 + 4677457284049 = 2189160^2 + 2162743^2 .

It is a cyclic number.

It is not a de Polignac number, because 9469878789649 - 2²³ = 9469870401041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9469878789643) 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, 6678334122 + ... + 6678335539.

It is an arithmetic number, because the mean of its divisors is an integer number (2370808865005).

Almost surely, 2^{9469878789649} is an apocalyptic number.

It is an amenable number.

9469878789649 is a deficient number, since it is larger than the sum of its proper divisors (13356670371).

9469878789649 is a wasteful number, since it uses less digits than its factorization.

9469878789649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13356670370.

The product of its digits is 94810963968, while the sum is 94.

The spelling of 9469878789649 in words is "nine trillion, four hundred sixty-nine billion, eight hundred seventy-eight million, seven hundred eighty-nine thousand, six hundred forty-nine".