2778286041943 has 8 divisors (see below), whose sum is σ = 2854223640576. Its totient is φ = 2702863275000.

The previous prime is 2778286041887. The next prime is 2778286041953. The reversal of 2778286041943 is 3491406828772.

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 2778286041943 - 2⁹ = 2778286041431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2778286041953) 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, 128696983 + ... + 128718568.

It is an arithmetic number, because the mean of its divisors is an integer number (356777955072).

Almost surely, 2^{2778286041943} is an apocalyptic number.

2778286041943 is a deficient number, since it is larger than the sum of its proper divisors (75937598633).

2778286041943 is a wasteful number, since it uses less digits than its factorization.

2778286041943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257415845.

The product of its (nonzero) digits is 32514048, while the sum is 61.

The spelling of 2778286041943 in words is "two trillion, seven hundred seventy-eight billion, two hundred eighty-six million, forty-one thousand, nine hundred forty-three".