1378877751255 has 8 divisors (see below), whose sum is σ = 2206204402032. Its totient is φ = 735401467328.

The previous prime is 1378877751247. The next prime is 1378877751257. The reversal of 1378877751255 is 5521577788731.

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 1378877751255 - 2³ = 1378877751247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378877751257) 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, 45962591694 + ... + 45962591723.

It is an arithmetic number, because the mean of its divisors is an integer number (275775550254).

Almost surely, 2^{1378877751255} is an apocalyptic number.

1378877751255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1378877751255 is a deficient number, since it is larger than the sum of its proper divisors (827326650777).

1378877751255 is an equidigital number, since it uses as much as digits as its factorization.

1378877751255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91925183425.

The product of its digits is 115248000, while the sum is 66.

The spelling of 1378877751255 in words is "one trillion, three hundred seventy-eight billion, eight hundred seventy-seven million, seven hundred fifty-one thousand, two hundred fifty-five".