2878343769555 has 48 divisors (see below), whose sum is σ = 5480050417920. Its totient is φ = 1391089702464.

The previous prime is 2878343769547. The next prime is 2878343769577. The reversal of 2878343769555 is 5559673438782.

2878343769555 is a `hidden beast` number, since 2 + 8 + 7 + 8 + 3 + 4 + 3 + 7 + 69 + 555 = 666.

It is not a de Polignac number, because 2878343769555 - 2³ = 2878343769547 is a prime.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73164769 + ... + 73204098.

It is an arithmetic number, because the mean of its divisors is an integer number (114167717040).

Almost surely, 2^{2878343769555} is an apocalyptic number.

2878343769555 is a deficient number, since it is larger than the sum of its proper divisors (2601706648365).

2878343769555 is a wasteful number, since it uses less digits than its factorization.

2878343769555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146368920 (or 146368917 counting only the distinct ones).

The product of its digits is 1524096000, while the sum is 72.

The spelling of 2878343769555 in words is "two trillion, eight hundred seventy-eight billion, three hundred forty-three million, seven hundred sixty-nine thousand, five hundred fifty-five".