2044378467855 has 24 divisors (see below), whose sum is σ = 3543673687632. Its totient is φ = 1090309231104.

The previous prime is 2044378467739. The next prime is 2044378467871. The reversal of 2044378467855 is 5587648734402.

2044378467855 is a `hidden beast` number, since 2 + 0 + 4 + 437 + 84 + 6 + 78 + 55 = 666.

It is not a de Polignac number, because 2044378467855 - 2¹⁵ = 2044378435087 is a prime.

It is a super-3 number, since 3×2044378467855³ (a number of 38 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2044378467792 and 2044378467801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1451647 + ... + 2489183.

It is an arithmetic number, because the mean of its divisors is an integer number (147653070318).

Almost surely, 2^{2044378467855} is an apocalyptic number.

2044378467855 is a deficient number, since it is larger than the sum of its proper divisors (1499295219777).

2044378467855 is a wasteful number, since it uses less digits than its factorization.

2044378467855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081335 (or 1081332 counting only the distinct ones).

The product of its (nonzero) digits is 180633600, while the sum is 63.

The spelling of 2044378467855 in words is "two trillion, forty-four billion, three hundred seventy-eight million, four hundred sixty-seven thousand, eight hundred fifty-five".