67414631856 has 160 divisors (see below), whose sum is σ = 204753228288. Its totient is φ = 18843217920.

The previous prime is 67414631821. The next prime is 67414631887. The reversal of 67414631856 is 65813641476.

It is a junction number, because it is equal to n+sod(n) for n = 67414631799 and 67414631808.

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 31 ways as a sum of consecutive naturals, for example, 12194565 + ... + 12200091.

Almost surely, 2^67414631856 is an apocalyptic number.

67414631856 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67414631856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102376614144).

67414631856 is an abundant number, since it is smaller than the sum of its proper divisors (137338596432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67414631856 is a wasteful number, since it uses less digits than its factorization.

67414631856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7339 (or 7333 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 67414631856 in words is "sixty-seven billion, four hundred fourteen million, six hundred thirty-one thousand, eight hundred fifty-six".