7776939480 has 64 divisors (see below), whose sum is σ = 23368854240. Its totient is φ = 2070469632.

The previous prime is 7776939479. The next prime is 7776939481. The reversal of 7776939480 is 849396777.

It is an interprime number because it is at equal distance from previous prime (7776939479) and next prime (7776939481).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7776939481) 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 15 ways as a sum of consecutive naturals, for example, 21522 + ... + 126558.

Almost surely, 2^7776939480 is an apocalyptic number.

It is an amenable number.

7776939480 is an abundant number, since it is smaller than the sum of its proper divisors (15591914760).

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

7776939480 is a wasteful number, since it uses less digits than its factorization.

7776939480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105668 (or 105664 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 60.

The square root of 7776939480 is about 88186.9575390828. The cubic root of 7776939480 is about 1981.2361325078.

The spelling of 7776939480 in words is "seven billion, seven hundred seventy-six million, nine hundred thirty-nine thousand, four hundred eighty".