428673117326 has 16 divisors (see below), whose sum is σ = 660940974288. Its totient is φ = 208395144000.

The previous prime is 428673117317. The next prime is 428673117331. The reversal of 428673117326 is 623711376824.

It is a super-2 number, since 2×428673117326² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8897000 + ... + 8945051.

It is an arithmetic number, because the mean of its divisors is an integer number (41308810893).

Almost surely, 2^428673117326 is an apocalyptic number.

428673117326 is a deficient number, since it is larger than the sum of its proper divisors (232267856962).

428673117326 is a wasteful number, since it uses less digits than its factorization.

428673117326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17842387.

The product of its digits is 2032128, while the sum is 50.

The spelling of 428673117326 in words is "four hundred twenty-eight billion, six hundred seventy-three million, one hundred seventeen thousand, three hundred twenty-six".