67428678126964 has 96 divisors (see below), whose sum is σ = 154880581847040. Its totient is φ = 24884945712000.

The previous prime is 67428678126937. The next prime is 67428678127081. The reversal of 67428678126964 is 46962187682476.

It is a Harshad number since it is a multiple of its sum of digits (76).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43758814 + ... + 45273514.

It is an arithmetic number, because the mean of its divisors is an integer number (1613339394240).

Almost surely, 2^{67428678126964} 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 67428678126964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77440290923520).

67428678126964 is an abundant number, since it is smaller than the sum of its proper divisors (87451903720076).

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

67428678126964 is a wasteful number, since it uses less digits than its factorization.

67428678126964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522349 (or 1522347 counting only the distinct ones).

The product of its digits is 2341011456, while the sum is 76.

The spelling of 67428678126964 in words is "sixty-seven trillion, four hundred twenty-eight billion, six hundred seventy-eight million, one hundred twenty-six thousand, nine hundred sixty-four".