678125652496544 has 96 divisors (see below), whose sum is σ = 1579015175472000. Its totient is φ = 280493627581440.

The previous prime is 678125652496543. The next prime is 678125652496597. The reversal of 678125652496544 is 445694256521876.

It is not an unprimeable number, because it can be changed into a prime (678125652496541) 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, 3918602 + ... + 37035209.

It is an arithmetic number, because the mean of its divisors is an integer number (16448074744500).

Almost surely, 2^{678125652496544} is an apocalyptic number.

It is an amenable number.

678125652496544 is an abundant number, since it is smaller than the sum of its proper divisors (900889522975456).

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

678125652496544 is a wasteful number, since it uses less digits than its factorization.

678125652496544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40956406 (or 40956398 counting only the distinct ones).

The product of its digits is 3483648000, while the sum is 74.

The spelling of 678125652496544 in words is "six hundred seventy-eight trillion, one hundred twenty-five billion, six hundred fifty-two million, four hundred ninety-six thousand, five hundred forty-four".