67290128345 has 8 divisors (see below), whose sum is σ = 88088895360. Its totient is φ = 48938275120.

The previous prime is 67290128341. The next prime is 67290128359. The reversal of 67290128345 is 54382109276.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67290128345 - 2² = 67290128341 is a prime.

It is a super-2 number, since 2×67290128345² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67290128345.

It is not an unprimeable number, because it can be changed into a prime (67290128341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611728385 + ... + 611728494.

It is an arithmetic number, because the mean of its divisors is an integer number (11011111920).

It is a 1-persistent number, because it is pandigital, but 2⋅67290128345 = 134580256690 is not.

Almost surely, 2^67290128345 is an apocalyptic number.

It is an amenable number.

67290128345 is a deficient number, since it is larger than the sum of its proper divisors (20798767015).

67290128345 is a wasteful number, since it uses less digits than its factorization.

67290128345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223456895.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 67290128345 in words is "sixty-seven billion, two hundred ninety million, one hundred twenty-eight thousand, three hundred forty-five".