67845278945 has 16 divisors (see below), whose sum is σ = 86662224000. Its totient is φ = 50841825408.

The previous prime is 67845278923. The next prime is 67845278947. The reversal of 67845278945 is 54987254876.

It is a cyclic number.

It is not a de Polignac number, because 67845278945 - 2¹⁴ = 67845262561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67845278947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4003685 + ... + 4020594.

It is an arithmetic number, because the mean of its divisors is an integer number (5416389000).

Almost surely, 2^67845278945 is an apocalyptic number.

It is an amenable number.

67845278945 is a deficient number, since it is larger than the sum of its proper divisors (18816945055).

67845278945 is a wasteful number, since it uses less digits than its factorization.

67845278945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8024392.

The product of its digits is 135475200, while the sum is 65.

The spelling of 67845278945 in words is "sixty-seven billion, eight hundred forty-five million, two hundred seventy-eight thousand, nine hundred forty-five".