26020078100208 has 80 divisors (see below), whose sum is σ = 79080629542560. Its totient is φ = 8163161754624.

The previous prime is 26020078100147. The next prime is 26020078100227. The reversal of 26020078100208 is 80200187002062.

It is a happy number.

26020078100208 is a `hidden beast` number, since 260 + 20 + 0 + 78 + 100 + 208 = 666.

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

It is a congruent 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, 1771512135 + ... + 1771526822.

It is an arithmetic number, because the mean of its divisors is an integer number (988507869282).

Almost surely, 2^{26020078100208} is an apocalyptic number.

It is an amenable number.

26020078100208 is an abundant number, since it is smaller than the sum of its proper divisors (53060551442352).

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

26020078100208 is a wasteful number, since it uses less digits than its factorization.

26020078100208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543038991 (or 3543038979 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 26020078100208 in words is "twenty-six trillion, twenty billion, seventy-eight million, one hundred thousand, two hundred eight".