2054778170 has 8 divisors (see below), whose sum is σ = 3698600724. Its totient is φ = 821911264.

The previous prime is 2054778157. The next prime is 2054778179. The reversal of 2054778170 is 718774502.

It can be written as a sum of positive squares in 2 ways, for example, as 1977847729 + 76930441 = 44473^2 + 8771^2 .

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

It is a super-2 number, since 2×2054778170² = 8444226655817097800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2054778179) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 102738899 + ... + 102738918.

Almost surely, 2^2054778170 is an apocalyptic number.

2054778170 is a deficient number, since it is larger than the sum of its proper divisors (1643822554).

2054778170 is a wasteful number, since it uses less digits than its factorization.

2054778170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205477824.

The product of its (nonzero) digits is 109760, while the sum is 41.

The square root of 2054778170 is about 45329.6610399857. The cubic root of 2054778170 is about 1271.3202980462.

The spelling of 2054778170 in words is "two billion, fifty-four million, seven hundred seventy-eight thousand, one hundred seventy".