687226622786 has 192 divisors, whose sum is σ = 1310051957760. Its totient is φ = 268450406400.

The previous prime is 687226622773. The next prime is 687226622801.

It is a happy number.

687226622786 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×687226622786² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 182334710 + ... + 182338478.

It is an arithmetic number, because the mean of its divisors is an integer number (6823187280).

Almost surely, 2^687226622786 is an apocalyptic number.

687226622786 is a deficient number, since it is larger than the sum of its proper divisors (622825334974).

687226622786 is a wasteful number, since it uses less digits than its factorization.

687226622786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921 (or 3910 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 62.

The spelling of 687226622786 in words is "six hundred eighty-seven billion, two hundred twenty-six million, six hundred twenty-two thousand, seven hundred eighty-six".