67143648 has 192 divisors, whose sum is σ = 213034752. Its totient is φ = 18247680.

The previous prime is 67143631. The next prime is 67143667. The reversal of 67143648 is 84634176.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 919740 + ... + 919812.

It is an arithmetic number, because the mean of its divisors is an integer number (1109556).

Almost surely, 2^67143648 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 67143648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106517376).

67143648 is an abundant number, since it is smaller than the sum of its proper divisors (145891104).

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

67143648 is a wasteful number, since it uses less digits than its factorization.

67143648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 169 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 67143648 is about 8194.1227718408. The cubic root of 67143648 is about 406.4448681526. Note that the first 3 decimals are identical.

The spelling of 67143648 in words is "sixty-seven million, one hundred forty-three thousand, six hundred forty-eight".