7778046760 has 64 divisors (see below), whose sum is σ = 19607598720. Its totient is φ = 2751932160.

The previous prime is 7778046733. The next prime is 7778046767. The reversal of 7778046760 is 676408777.

It is a super-2 number, since 2×7778046760² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7778046698 and 7778046707.

It is not an unprimeable number, because it can be changed into a prime (7778046767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222604 + ... + 255163.

It is an arithmetic number, because the mean of its divisors is an integer number (306368730).

Almost surely, 2^7778046760 is an apocalyptic number.

It is an amenable number.

7778046760 is an abundant number, since it is smaller than the sum of its proper divisors (11829551960).

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

7778046760 is a wasteful number, since it uses less digits than its factorization.

7778046760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477826 (or 477822 counting only the distinct ones).

The product of its (nonzero) digits is 2765952, while the sum is 52.

The square root of 7778046760 is about 88193.2353414932. The cubic root of 7778046760 is about 1981.3301574578.

The spelling of 7778046760 in words is "seven billion, seven hundred seventy-eight million, forty-six thousand, seven hundred sixty".