1778780048290 has 16 divisors (see below), whose sum is σ = 3659204670912. Its totient is φ = 609867445104.

The previous prime is 1778780048273. The next prime is 1778780048293. The reversal of 1778780048290 is 928400878771.

It is not an unprimeable number, because it can be changed into a prime (1778780048293) 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, 12705571704 + ... + 12705571843.

It is an arithmetic number, because the mean of its divisors is an integer number (228700291932).

Almost surely, 2^{1778780048290} is an apocalyptic number.

1778780048290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1778780048290 is an abundant number, since it is smaller than the sum of its proper divisors (1880424622622).

1778780048290 is a wasteful number, since it uses less digits than its factorization.

1778780048290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25411143561.

The product of its (nonzero) digits is 12644352, while the sum is 61.

The spelling of 1778780048290 in words is "one trillion, seven hundred seventy-eight billion, seven hundred eighty million, forty-eight thousand, two hundred ninety".