2068778436 has 24 divisors (see below), whose sum is σ = 4830424704. Its totient is φ = 689124960.

The previous prime is 2068778357. The next prime is 2068778449. The reversal of 2068778436 is 6348778602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39820 + ... + 75651.

It is an arithmetic number, because the mean of its divisors is an integer number (201267696).

Almost surely, 2^2068778436 is an apocalyptic number.

It is an amenable number.

2068778436 is an abundant number, since it is smaller than the sum of its proper divisors (2761646268).

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

2068778436 is a wasteful number, since it uses less digits than its factorization.

2068778436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116971 (or 116969 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The square root of 2068778436 is about 45483.8260923595. The cubic root of 2068778436 is about 1274.2011524917.

The spelling of 2068778436 in words is "two billion, sixty-eight million, seven hundred seventy-eight thousand, four hundred thirty-six".