2775780578078 has 16 divisors (see below), whose sum is σ = 4234323558960. Its totient is φ = 1364340302976.

The previous prime is 2775780578023. The next prime is 2775780578099. The reversal of 2775780578078 is 8708750875772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6808400 + ... + 7204572.

It is an arithmetic number, because the mean of its divisors is an integer number (264645222435).

Almost surely, 2^{2775780578078} is an apocalyptic number.

2775780578078 is a deficient number, since it is larger than the sum of its proper divisors (1458542980882).

2775780578078 is a wasteful number, since it uses less digits than its factorization.

2775780578078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455611.

The product of its (nonzero) digits is 430259200, while the sum is 71.

The spelling of 2775780578078 in words is "two trillion, seven hundred seventy-five billion, seven hundred eighty million, five hundred seventy-eight thousand, seventy-eight".