67481448078 has 48 divisors (see below), whose sum is σ = 156155448960. Its totient is φ = 19372660560.

The previous prime is 67481448029. The next prime is 67481448079. The reversal of 67481448078 is 87084418476.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67481448079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2432250 + ... + 2459837.

It is an arithmetic number, because the mean of its divisors is an integer number (3253238520).

Almost surely, 2^67481448078 is an apocalyptic number.

67481448078 is an abundant number, since it is smaller than the sum of its proper divisors (88674000882).

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

67481448078 is a wasteful number, since it uses less digits than its factorization.

67481448078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4892133 (or 4892122 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 57.

The spelling of 67481448078 in words is "sixty-seven billion, four hundred eighty-one million, four hundred forty-eight thousand, seventy-eight".