26312223492 has 192 divisors, whose sum is σ = 73082598400. Its totient is φ = 8162933760.

The previous prime is 26312223463. The next prime is 26312223499. The reversal of 26312223492 is 29432221362.

26312223492 is a `hidden beast` number, since 26 + 3 + 122 + 23 + 492 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (26312223499) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32443767 + ... + 32444577.

Almost surely, 2^26312223492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26312223492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36541299200).

26312223492 is an abundant number, since it is smaller than the sum of its proper divisors (46770374908).

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

26312223492 is a wasteful number, since it uses less digits than its factorization.

26312223492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1095 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The spelling of 26312223492 in words is "twenty-six billion, three hundred twelve million, two hundred twenty-three thousand, four hundred ninety-two".