67211967630 has 16 divisors (see below), whose sum is σ = 161308722384. Its totient is φ = 17923191360.

The previous prime is 67211967617. The next prime is 67211967631. The reversal of 67211967630 is 3676911276.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67211967630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67211967631) by changing a digit.

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, 1120199431 + ... + 1120199490.

It is an arithmetic number, because the mean of its divisors is an integer number (10081795149).

Almost surely, 2^67211967630 is an apocalyptic number.

67211967630 is an abundant number, since it is smaller than the sum of its proper divisors (94096754754).

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

67211967630 is a wasteful number, since it uses less digits than its factorization.

67211967630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240398931.

The product of its (nonzero) digits is 571536, while the sum is 48.

The spelling of 67211967630 in words is "sixty-seven billion, two hundred eleven million, nine hundred sixty-seven thousand, six hundred thirty".