67780752 has 80 divisors (see below), whose sum is σ = 198528960. Its totient is φ = 19754496.

The previous prime is 67780723. The next prime is 67780777. The reversal of 67780752 is 25708776.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8998 + ... + 14714.

It is an arithmetic number, because the mean of its divisors is an integer number (2481612).

Almost surely, 2^67780752 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 67780752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99264480).

67780752 is an abundant number, since it is smaller than the sum of its proper divisors (130748208).

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

67780752 is a wasteful number, since it uses less digits than its factorization.

67780752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760 (or 5754 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 67780752 is about 8232.9066556108. The cubic root of 67780752 is about 407.7263640015.

The spelling of 67780752 in words is "sixty-seven million, seven hundred eighty thousand, seven hundred fifty-two".