13434781730 has 8 divisors (see below), whose sum is σ = 24182607132. Its totient is φ = 5373912688.

The previous prime is 13434781729. The next prime is 13434781739. The reversal of 13434781730 is 3718743431.

It can be written as a sum of positive squares in 2 ways, for example, as 10964393521 + 2470388209 = 104711^2 + 49703^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13434781739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671739077 + ... + 671739096.

Almost surely, 2^13434781730 is an apocalyptic number.

13434781730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13434781730 is a deficient number, since it is larger than the sum of its proper divisors (10747825402).

13434781730 is a wasteful number, since it uses less digits than its factorization.

13434781730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343478180.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 13434781730 in words is "thirteen billion, four hundred thirty-four million, seven hundred eighty-one thousand, seven hundred thirty".