7678774870 has 32 divisors (see below), whose sum is σ = 14906183040. Its totient is φ = 2831207040.

The previous prime is 7678774867. The next prime is 7678774877. The reversal of 7678774870 is 784778767.

It is a junction number, because it is equal to n+sod(n) for n = 7678774799 and 7678774808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7678774877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50515 + ... + 133825.

It is an arithmetic number, because the mean of its divisors is an integer number (465818220).

Almost surely, 2^7678774870 is an apocalyptic number.

7678774870 is a deficient number, since it is larger than the sum of its proper divisors (7227408170).

7678774870 is a wasteful number, since it uses less digits than its factorization.

7678774870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84040.

The product of its (nonzero) digits is 25815552, while the sum is 61.

The square root of 7678774870 is about 87628.6190122839. The cubic root of 7678774870 is about 1972.8647431076.

The spelling of 7678774870 in words is "seven billion, six hundred seventy-eight million, seven hundred seventy-four thousand, eight hundred seventy".