1348678779 has 8 divisors (see below), whose sum is σ = 2055129600. Its totient is φ = 770673576.

The previous prime is 1348678739. The next prime is 1348678787. The reversal of 1348678779 is 9778768431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1348678779 - 2²⁴ = 1331901563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1348678739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32111379 + ... + 32111420.

It is an arithmetic number, because the mean of its divisors is an integer number (256891200).

Almost surely, 2^1348678779 is an apocalyptic number.

1348678779 is a deficient number, since it is larger than the sum of its proper divisors (706450821).

1348678779 is an equidigital number, since it uses as much as digits as its factorization.

1348678779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64222809.

The product of its digits is 14224896, while the sum is 60.

The square root of 1348678779 is about 36724.3622000437. The cubic root of 1348678779 is about 1104.8487822936.

The spelling of 1348678779 in words is "one billion, three hundred forty-eight million, six hundred seventy-eight thousand, seven hundred seventy-nine".