26870904628666 has 16 divisors (see below), whose sum is σ = 47044501721856. Its totient is φ = 11271078536976.

The previous prime is 26870904628661. The next prime is 26870904628697. The reversal of 26870904628666 is 66682640907862.

It is a junction number, because it is equal to n+sod(n) for n = 26870904628595 and 26870904628604.

It is not an unprimeable number, because it can be changed into a prime (26870904628661) 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, 20418619881 + ... + 20418621196.

It is an arithmetic number, because the mean of its divisors is an integer number (2940281357616).

Almost surely, 2^{26870904628666} is an apocalyptic number.

26870904628666 is a deficient number, since it is larger than the sum of its proper divisors (20173597093190).

26870904628666 is a wasteful number, since it uses less digits than its factorization.

26870904628666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40837241133.

The product of its (nonzero) digits is 501645312, while the sum is 70.

The spelling of 26870904628666 in words is "twenty-six trillion, eight hundred seventy billion, nine hundred four million, six hundred twenty-eight thousand, six hundred sixty-six".