67400070678 has 48 divisors (see below), whose sum is σ = 152045764416. Its totient is φ = 22377141000.

The previous prime is 67400070671. The next prime is 67400070763. The reversal of 67400070678 is 87607000476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67400070671) 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, 154276 + ... + 398247.

It is an arithmetic number, because the mean of its divisors is an integer number (3167620092).

Almost surely, 2^67400070678 is an apocalyptic number.

67400070678 is an abundant number, since it is smaller than the sum of its proper divisors (84645693738).

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

67400070678 is a wasteful number, since it uses less digits than its factorization.

67400070678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552791 (or 552779 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 67400070678 in words is "sixty-seven billion, four hundred million, seventy thousand, six hundred seventy-eight".