678051752679 has 48 divisors (see below), whose sum is σ = 1168725036000. Its totient is φ = 387391673088.

The previous prime is 678051752659. The next prime is 678051752699. The reversal of 678051752679 is 976257150876.

678051752679 is a `hidden beast` number, since 6 + 7 + 8 + 0 + 517 + 52 + 67 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (678051752659) and next prime (678051752699).

It is not a de Polignac number, because 678051752679 - 2¹⁵ = 678051719911 is a prime.

It is a super-2 number, since 2×678051752679² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678051752659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8263647 + ... + 8345295.

It is an arithmetic number, because the mean of its divisors is an integer number (24348438250).

Almost surely, 2^678051752679 is an apocalyptic number.

678051752679 is a deficient number, since it is larger than the sum of its proper divisors (490673283321).

678051752679 is a wasteful number, since it uses less digits than its factorization.

678051752679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87949 (or 87936 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 63.

The spelling of 678051752679 in words is "six hundred seventy-eight billion, fifty-one million, seven hundred fifty-two thousand, six hundred seventy-nine".