25726320236 has 12 divisors (see below), whose sum is σ = 45052708512. Its totient is φ = 12854117808.

The previous prime is 25726320227. The next prime is 25726320251. The reversal of 25726320236 is 63202362752.

It is a super-3 number, since 3×25726320236³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25726320236.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2254175 + ... + 2265558.

It is an arithmetic number, because the mean of its divisors is an integer number (3754392376).

Almost surely, 2^25726320236 is an apocalyptic number.

It is an amenable number.

25726320236 is a deficient number, since it is larger than the sum of its proper divisors (19326388276).

25726320236 is a wasteful number, since it uses less digits than its factorization.

25726320236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521160 (or 4521158 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 38.

Adding to 25726320236 its reverse (63202362752), we get a palindrome (88928682988).

The spelling of 25726320236 in words is "twenty-five billion, seven hundred twenty-six million, three hundred twenty thousand, two hundred thirty-six".