67077667412 has 72 divisors (see below), whose sum is σ = 146094711840. Its totient is φ = 26787983040.

The previous prime is 67077667399. The next prime is 67077667441. The reversal of 67077667412 is 21476677076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79523 + ... + 374805.

It is an arithmetic number, because the mean of its divisors is an integer number (2029093220).

Almost surely, 2^67077667412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67077667412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73047355920).

67077667412 is an abundant number, since it is smaller than the sum of its proper divisors (79017044428).

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

67077667412 is a wasteful number, since it uses less digits than its factorization.

67077667412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295381 (or 295372 counting only the distinct ones).

The product of its (nonzero) digits is 4148928, while the sum is 53.

The spelling of 67077667412 in words is "sixty-seven billion, seventy-seven million, six hundred sixty-seven thousand, four hundred twelve".