434437421693 has 8 divisors (see below), whose sum is σ = 473955565440. Its totient is φ = 394923250080.

The previous prime is 434437421657. The next prime is 434437421713. The reversal of 434437421693 is 396124734434.

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 not a de Polignac number, because 434437421693 - 2²⁰ = 434436373117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434437411693) 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, 762005 + ... + 1203962.

It is an arithmetic number, because the mean of its divisors is an integer number (59244445680).

Almost surely, 2^434437421693 is an apocalyptic number.

It is an amenable number.

434437421693 is a deficient number, since it is larger than the sum of its proper divisors (39518143747).

434437421693 is a wasteful number, since it uses less digits than its factorization.

434437421693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986067.

The product of its digits is 5225472, while the sum is 50.

The spelling of 434437421693 in words is "four hundred thirty-four billion, four hundred thirty-seven million, four hundred twenty-one thousand, six hundred ninety-three".