3978800718 has 16 divisors (see below), whose sum is σ = 8005253760. Its totient is φ = 1318324856.

The previous prime is 3978800713. The next prime is 3978800743. The reversal of 3978800718 is 8170088793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3978800711) 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 7 ways as a sum of consecutive naturals, for example, 1984428 + ... + 1986431.

It is an arithmetic number, because the mean of its divisors is an integer number (500328360).

Almost surely, 2^3978800718 is an apocalyptic number.

3978800718 is an abundant number, since it is smaller than the sum of its proper divisors (4026453042).

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

3978800718 is a wasteful number, since it uses less digits than its factorization.

3978800718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971031.

The product of its (nonzero) digits is 677376, while the sum is 51.

The square root of 3978800718 is about 63077.7355173757. The cubic root of 3978800718 is about 1584.5917696647.

The spelling of 3978800718 in words is "three billion, nine hundred seventy-eight million, eight hundred thousand, seven hundred eighteen".