42643402146 has 24 divisors (see below), whose sum is σ = 92398285980. Its totient is φ = 14213813856.

The previous prime is 42643402121. The next prime is 42643402169. The reversal of 42643402146 is 64120434624.

42643402146 is a `hidden beast` number, since 4 + 2 + 6 + 434 + 0 + 214 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 39424088025 + 3219314121 = 198555^2 + 56739^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42643402146.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501076 + ... + 579968.

Almost surely, 2^42643402146 is an apocalyptic number.

42643402146 is an abundant number, since it is smaller than the sum of its proper divisors (49754883834).

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

42643402146 is a wasteful number, since it uses less digits than its factorization.

42643402146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108930 (or 108927 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 42643402146 in words is "forty-two billion, six hundred forty-three million, four hundred two thousand, one hundred forty-six".