20326415694 has 64 divisors (see below), whose sum is σ = 45321292800. Its totient is φ = 6034396032.

The previous prime is 20326415693. The next prime is 20326415701. The reversal of 20326415694 is 49651462302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20326415693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4981147 + ... + 4985225.

It is an arithmetic number, because the mean of its divisors is an integer number (708145200).

Almost surely, 2^20326415694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20326415694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22660646400).

20326415694 is an abundant number, since it is smaller than the sum of its proper divisors (24994877106).

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

20326415694 is a wasteful number, since it uses less digits than its factorization.

20326415694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6329.

The product of its (nonzero) digits is 311040, while the sum is 42.

Adding to 20326415694 its reverse (49651462302), we get a palindrome (69977877996).

The spelling of 20326415694 in words is "twenty billion, three hundred twenty-six million, four hundred fifteen thousand, six hundred ninety-four".