2078173755 has 48 divisors (see below), whose sum is σ = 4358937024. Its totient is φ = 894136320.

The previous prime is 2078173751. The next prime is 2078173777. The reversal of 2078173755 is 5573718702.

2078173755 is nontrivially palindromic in base 11.

It is not a de Polignac number, because 2078173755 - 2² = 2078173751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2078173755.

It is not an unprimeable number, because it can be changed into a prime (2078173751) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188686 + ... + 199395.

It is an arithmetic number, because the mean of its divisors is an integer number (90811188).

Almost surely, 2^2078173755 is an apocalyptic number.

2078173755 is an abundant number, since it is smaller than the sum of its proper divisors (2280763269).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2078173755 is a wasteful number, since it uses less digits than its factorization.

2078173755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388116 (or 388113 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The square root of 2078173755 is about 45586.9910720153. The cubic root of 2078173755 is about 1276.1271601064.

The spelling of 2078173755 in words is "two billion, seventy-eight million, one hundred seventy-three thousand, seven hundred fifty-five".