1934789805 has 96 divisors (see below), whose sum is σ = 3844005984. Its totient is φ = 891813888.

The previous prime is 1934789783. The next prime is 1934789807. The reversal of 1934789805 is 5089874391.

1934789805 is a `hidden beast` number, since 1 + 93 + 478 + 9 + 80 + 5 = 666.

1934789805 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 28419561 + 1906370244 = 5331^2 + 43662^2 .

It is not a de Polignac number, because 1934789805 - 2¹³ = 1934781613 is a prime.

It is a Curzon number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1934789807) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2555487 + ... + 2556243.

It is an arithmetic number, because the mean of its divisors is an integer number (40041729).

Almost surely, 2^1934789805 is an apocalyptic number.

1934789805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1934789805 is a deficient number, since it is larger than the sum of its proper divisors (1909216179).

1934789805 is a wasteful number, since it uses less digits than its factorization.

1934789805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 1934789805 is about 43986.2456342889. The cubic root of 1934789805 is about 1246.0761875781.

The spelling of 1934789805 in words is "one billion, nine hundred thirty-four million, seven hundred eighty-nine thousand, eight hundred five".