688256250070 has 16 divisors (see below), whose sum is σ = 1238874104448. Its totient is φ = 275299643520.

The previous prime is 688256250041. The next prime is 688256250161. The reversal of 688256250070 is 70052652886.

It is a junction number, because it is equal to n+sod(n) for n = 688256249996 and 688256250023.

It is a congruent number.

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, 848830 + ... + 1448110.

It is an arithmetic number, because the mean of its divisors is an integer number (77429631528).

Almost surely, 2^688256250070 is an apocalyptic number.

688256250070 is a deficient number, since it is larger than the sum of its proper divisors (550617854378).

688256250070 is a wasteful number, since it uses less digits than its factorization.

688256250070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714135.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 688256250070 in words is "six hundred eighty-eight billion, two hundred fifty-six million, two hundred fifty thousand, seventy".