1778264068 has 12 divisors (see below), whose sum is σ = 3556528192. Its totient is φ = 762113160.

The previous prime is 1778264063. The next prime is 1778264099. The reversal of 1778264068 is 8604628771.

It is a happy number.

1778264068 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1778264063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31754688 + ... + 31754743.

Almost surely, 2^1778264068 is an apocalyptic number.

It is an amenable number.

1778264068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1778264068 is a wasteful number, since it uses less digits than its factorization.

1778264068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63509442 (or 63509440 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 1778264068 is about 42169.4684339274. The cubic root of 1778264068 is about 1211.5241744821.

The spelling of 1778264068 in words is "one billion, seven hundred seventy-eight million, two hundred sixty-four thousand, sixty-eight".