678963391245 has 48 divisors (see below), whose sum is σ = 1187113973760. Its totient is φ = 358966484352.

The previous prime is 678963391091. The next prime is 678963391321. The reversal of 678963391245 is 542193369876.

It is not a de Polignac number, because 678963391245 - 2⁹ = 678963390733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6975402 + ... + 7072068.

It is an arithmetic number, because the mean of its divisors is an integer number (24731541120).

Almost surely, 2^678963391245 is an apocalyptic number.

It is an amenable number.

678963391245 is a deficient number, since it is larger than the sum of its proper divisors (508150582515).

678963391245 is a wasteful number, since it uses less digits than its factorization.

678963391245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98034 (or 98031 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The spelling of 678963391245 in words is "six hundred seventy-eight billion, nine hundred sixty-three million, three hundred ninety-one thousand, two hundred forty-five".