26430223698 has 90 divisors (see below), whose sum is σ = 60613285887. Its totient is φ = 8607980160.

The previous prime is 26430223693. The next prime is 26430223739. The reversal of 26430223698 is 89632203462.

It is a happy number.

26430223698 is a `hidden beast` number, since 26 + 4 + 302 + 236 + 98 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 24234082929 + 2196140769 = 155673^2 + 46863^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=114957.

It is not an unprimeable number, because it can be changed into a prime (26430223693) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 109668858 + ... + 109669098.

Almost surely, 2^26430223698 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26430223698

26430223698 is an abundant number, since it is smaller than the sum of its proper divisors (34183062189).

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

26430223698 is an frugal number, since it uses more digits than its factorization.

26430223698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 26430223698 in words is "twenty-six billion, four hundred thirty million, two hundred twenty-three thousand, six hundred ninety-eight".