684298145378 has 16 divisors (see below), whose sum is σ = 1080508380000. Its totient is φ = 324129939552.

The previous prime is 684298145369. The next prime is 684298145387. The reversal of 684298145378 is 873541892486.

684298145378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (684298145369) and next prime (684298145387).

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, 847973 + ... + 1444871.

It is an arithmetic number, because the mean of its divisors is an integer number (67531773750).

Almost surely, 2^684298145378 is an apocalyptic number.

684298145378 is a deficient number, since it is larger than the sum of its proper divisors (396210234622).

684298145378 is a wasteful number, since it uses less digits than its factorization.

684298145378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627089.

The product of its digits is 92897280, while the sum is 65.

The spelling of 684298145378 in words is "six hundred eighty-four billion, two hundred ninety-eight million, one hundred forty-five thousand, three hundred seventy-eight".