43612421634 has 12 divisors (see below), whose sum is σ = 94493580246. Its totient is φ = 14537473872.

The previous prime is 43612421627. The next prime is 43612421659.

43612421634 is a `hidden beast` number, since 4 + 3 + 6 + 12 + 4 + 2 + 1 + 634 = 666.

43612421634 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 39739226409 + 3873195225 = 199347^2 + 62235^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1211456139 + ... + 1211456174.

Almost surely, 2^43612421634 is an apocalyptic number.

43612421634 is an abundant number, since it is smaller than the sum of its proper divisors (50881158612).

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

43612421634 is a wasteful number, since it uses less digits than its factorization.

43612421634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422912321 (or 2422912318 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The spelling of 43612421634 in words is "forty-three billion, six hundred twelve million, four hundred twenty-one thousand, six hundred thirty-four".