26307217612 has 48 divisors (see below), whose sum is σ = 50446942560. Its totient is φ = 11930485248.

The previous prime is 26307217609. The next prime is 26307217631. The reversal of 26307217612 is 21671270362.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1008243 + ... + 1034005.

It is an arithmetic number, because the mean of its divisors is an integer number (1050977970).

Almost surely, 2^26307217612 is an apocalyptic number.

It is an amenable number.

26307217612 is a deficient number, since it is larger than the sum of its proper divisors (24139724948).

26307217612 is a wasteful number, since it uses less digits than its factorization.

26307217612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26122 (or 26120 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

Adding to 26307217612 its reverse (21671270362), we get a palindrome (47978487974).

The spelling of 26307217612 in words is "twenty-six billion, three hundred seven million, two hundred seventeen thousand, six hundred twelve".