428070666241 has 8 divisors (see below), whose sum is σ = 429347347200. Its totient is φ = 426794454240.

The previous prime is 428070666227. The next prime is 428070666269. The reversal of 428070666241 is 142666070824.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428070666241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428070666191 and 428070666200.

It is not an unprimeable number, because it can be changed into a prime (428070616241) 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, 1755576 + ... + 1984486.

It is an arithmetic number, because the mean of its divisors is an integer number (53668418400).

It is a Proth number, since it is equal to 25515 ⋅ 2²⁴ + 1 and 25515 < 2²⁴.

Almost surely, 2^428070666241 is an apocalyptic number.

It is an amenable number.

428070666241 is a deficient number, since it is larger than the sum of its proper divisors (1276680959).

428070666241 is a wasteful number, since it uses less digits than its factorization.

428070666241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234479.

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 428070666241 in words is "four hundred twenty-eight billion, seventy million, six hundred sixty-six thousand, two hundred forty-one".