7680404378 has 8 divisors (see below), whose sum is σ = 11521286868. Its totient is φ = 3839975424.

The previous prime is 7680404377. The next prime is 7680404393. The reversal of 7680404378 is 8734040867.

It can be written as a sum of positive squares in 2 ways, for example, as 7541706649 + 138697729 = 86843^2 + 11777^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×7680404378³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (7680404377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67301 + ... + 141032.

Almost surely, 2^7680404378 is an apocalyptic number.

7680404378 is a deficient number, since it is larger than the sum of its proper divisors (3840882490).

7680404378 is a wasteful number, since it uses less digits than its factorization.

7680404378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226768.

The product of its (nonzero) digits is 903168, while the sum is 47.

The square root of 7680404378 is about 87637.9163262112. The cubic root of 7680404378 is about 1973.0042867006.

The spelling of 7680404378 in words is "seven billion, six hundred eighty million, four hundred four thousand, three hundred seventy-eight".