2078656862755 has 8 divisors (see below), whose sum is σ = 2721150802224. Its totient is φ = 1511750445600.

The previous prime is 2078656862749. The next prime is 2078656862791. The reversal of 2078656862755 is 5572686568702.

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

It is not a de Polignac number, because 2078656862755 - 2⁷ = 2078656862627 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18896880516 + ... + 18896880625.

It is an arithmetic number, because the mean of its divisors is an integer number (340143850278).

Almost surely, 2^{2078656862755} is an apocalyptic number.

2078656862755 is a deficient number, since it is larger than the sum of its proper divisors (642493939469).

2078656862755 is a wasteful number, since it uses less digits than its factorization.

2078656862755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37793761157.

The product of its (nonzero) digits is 338688000, while the sum is 67.

The spelling of 2078656862755 in words is "two trillion, seventy-eight billion, six hundred fifty-six million, eight hundred sixty-two thousand, seven hundred fifty-five".