1248469978329 has 40 divisors (see below), whose sum is σ = 2131959883328. Its totient is φ = 713232954720.

The previous prime is 1248469978321. The next prime is 1248469978337. The reversal of 1248469978329 is 9238799648421.

1248469978329 is a `hidden beast` number, since 1 + 2 + 48 + 469 + 97 + 8 + 32 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (1248469978321) and next prime (1248469978337).

It is not a de Polignac number, because 1248469978329 - 2³ = 1248469978321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248469978321) 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 39 ways as a sum of consecutive naturals, for example, 2009919 + ... + 2556699.

Almost surely, 2^{1248469978329} is an apocalyptic number.

It is an amenable number.

1248469978329 is a deficient number, since it is larger than the sum of its proper divisors (883489904999).

1248469978329 is an equidigital number, since it uses as much as digits as its factorization.

1248469978329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550827 (or 550818 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 72.

The spelling of 1248469978329 in words is "one trillion, two hundred forty-eight billion, four hundred sixty-nine million, nine hundred seventy-eight thousand, three hundred twenty-nine".