20434097686 has 8 divisors (see below), whose sum is σ = 30652242120. Its totient is φ = 10216683648.

The previous prime is 20434097681. The next prime is 20434097693. The reversal of 20434097686 is 68679043402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20434097681) 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, 106276 + ... + 228391.

It is an arithmetic number, because the mean of its divisors is an integer number (3831530265).

Almost surely, 2^20434097686 is an apocalyptic number.

20434097686 is a deficient number, since it is larger than the sum of its proper divisors (10218144434).

20434097686 is a wasteful number, since it uses less digits than its factorization.

20434097686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365198.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 20434097686 in words is "twenty billion, four hundred thirty-four million, ninety-seven thousand, six hundred eighty-six".