678877757860533 has 16 divisors (see below), whose sum is σ = 1128524065015296. Its totient is φ = 352663770317040.

The previous prime is 678877757860441. The next prime is 678877757860543. The reversal of 678877757860533 is 335068757778876.

It is not a de Polignac number, because 678877757860533 - 2¹⁴ = 678877757844149 is a prime.

It is a super-3 number, since 3×678877757860533³ (a number of 45 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 678877757860533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678877757860543) 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, 1469432376091 + ... + 1469432376552.

It is an arithmetic number, because the mean of its divisors is an integer number (70532754063456).

Almost surely, 2^{678877757860533} is an apocalyptic number.

It is an amenable number.

678877757860533 is a deficient number, since it is larger than the sum of its proper divisors (449646307154763).

678877757860533 is a wasteful number, since it uses less digits than its factorization.

678877757860533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938864752664.

The product of its (nonzero) digits is 69701990400, while the sum is 87.

The spelling of 678877757860533 in words is "six hundred seventy-eight trillion, eight hundred seventy-seven billion, seven hundred fifty-seven million, eight hundred sixty thousand, five hundred thirty-three".