428702611690 has 8 divisors (see below), whose sum is σ = 771664701060. Its totient is φ = 171481044672.

The previous prime is 428702611657. The next prime is 428702611739. The reversal of 428702611690 is 96116207824.

It can be written as a sum of positive squares in 2 ways, for example, as 428685777081 + 16834609 = 654741^2 + 4103^2 .

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

It is a super-2 number, since 2×428702611690² (a number of 24 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 428702611690.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21435130575 + ... + 21435130594.

Almost surely, 2^428702611690 is an apocalyptic number.

428702611690 is a deficient number, since it is larger than the sum of its proper divisors (342962089370).

428702611690 is a wasteful number, since it uses less digits than its factorization.

428702611690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42870261176.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 428702611690 in words is "four hundred twenty-eight billion, seven hundred two million, six hundred eleven thousand, six hundred ninety".