678787920035 has 8 divisors (see below), whose sum is σ = 814630137216. Its totient is φ = 542973913920.

The previous prime is 678787920023. The next prime is 678787920047. The reversal of 678787920035 is 530029787876.

It is an interprime number because it is at equal distance from previous prime (678787920023) and next prime (678787920047).

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

It is not a de Polignac number, because 678787920035 - 2³² = 674492952739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 678787920035.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6999794 + ... + 7096103.

It is an arithmetic number, because the mean of its divisors is an integer number (101828767152).

Almost surely, 2^678787920035 is an apocalyptic number.

678787920035 is a deficient number, since it is larger than the sum of its proper divisors (135842217181).

678787920035 is a wasteful number, since it uses less digits than its factorization.

678787920035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14105533.

The product of its (nonzero) digits is 35562240, while the sum is 62.

The spelling of 678787920035 in words is "six hundred seventy-eight billion, seven hundred eighty-seven million, nine hundred twenty thousand, thirty-five".