1378769255 has 8 divisors (see below), whose sum is σ = 1655577792. Its totient is φ = 1102312288.

The previous prime is 1378769167. The next prime is 1378769269. The reversal of 1378769255 is 5529678731.

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

It is a cyclic number.

It is not a de Polignac number, because 1378769255 - 2²⁶ = 1311660391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1378769197 and 1378769206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79184 + ... + 95013.

It is an arithmetic number, because the mean of its divisors is an integer number (206947224).

Almost surely, 2^1378769255 is an apocalyptic number.

1378769255 is a deficient number, since it is larger than the sum of its proper divisors (276808537).

1378769255 is a wasteful number, since it uses less digits than its factorization.

1378769255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175785.

The product of its digits is 3175200, while the sum is 53.

The square root of 1378769255 is about 37131.7822761041. The cubic root of 1378769255 is about 1113.0052089102.

The spelling of 1378769255 in words is "one billion, three hundred seventy-eight million, seven hundred sixty-nine thousand, two hundred fifty-five".