67045673640 has 64 divisors (see below), whose sum is σ = 219422208960. Its totient is φ = 16253496320.

The previous prime is 67045673603. The next prime is 67045673663. The reversal of 67045673640 is 4637654076.

It is a self number, because there is not a number n which added to its sum of digits gives 67045673640.

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, 25394769 + ... + 25397408.

It is an arithmetic number, because the mean of its divisors is an integer number (3428472015).

Almost surely, 2^67045673640 is an apocalyptic number.

67045673640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67045673640 is an abundant number, since it is smaller than the sum of its proper divisors (152376535320).

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

67045673640 is a wasteful number, since it uses less digits than its factorization.

67045673640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50792202 (or 50792198 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 48.

The spelling of 67045673640 in words is "sixty-seven billion, forty-five million, six hundred seventy-three thousand, six hundred forty".