7779316940 has 24 divisors (see below), whose sum is σ = 16498318032. Its totient is φ = 3080916800.

The previous prime is 7779316939. The next prime is 7779316967. The reversal of 7779316940 is 496139777.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923554 + ... + 1927593.

It is an arithmetic number, because the mean of its divisors is an integer number (687429918).

Almost surely, 2^7779316940 is an apocalyptic number.

It is an amenable number.

7779316940 is an abundant number, since it is smaller than the sum of its proper divisors (8719001092).

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

7779316940 is a wasteful number, since it uses less digits than its factorization.

7779316940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851257 (or 3851255 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 53.

The square root of 7779316940 is about 88200.4361667220. The cubic root of 7779316940 is about 1981.4380041121.

The spelling of 7779316940 in words is "seven billion, seven hundred seventy-nine million, three hundred sixteen thousand, nine hundred forty".