26223432402 has 16 divisors (see below), whose sum is σ = 52736628672. Its totient is φ = 8692850160.

The previous prime is 26223432397. The next prime is 26223432409. The reversal of 26223432402 is 20423432262.

It is a self number, because there is not a number n which added to its sum of digits gives 26223432402.

It is not an unprimeable number, because it can be changed into a prime (26223432409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12072318 + ... + 12074489.

It is an arithmetic number, because the mean of its divisors is an integer number (3296039292).

Almost surely, 2^26223432402 is an apocalyptic number.

26223432402 is an abundant number, since it is smaller than the sum of its proper divisors (26513196270).

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

26223432402 is a wasteful number, since it uses less digits than its factorization.

26223432402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24146993.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 26223432402 its reverse (20423432262), we get a palindrome (46646864664).

The spelling of 26223432402 in words is "twenty-six billion, two hundred twenty-three million, four hundred thirty-two thousand, four hundred two".