26600909638 has 4 divisors (see below), whose sum is σ = 39901364460. Its totient is φ = 13300454818.

The previous prime is 26600909627. The next prime is 26600909641. The reversal of 26600909638 is 83690900662.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 26600909591 and 26600909600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6650227408 + ... + 6650227411.

It is an arithmetic number, because the mean of its divisors is an integer number (9975341115).

Almost surely, 2^26600909638 is an apocalyptic number.

26600909638 is a deficient number, since it is larger than the sum of its proper divisors (13300454822).

26600909638 is a wasteful number, since it uses less digits than its factorization.

26600909638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13300454821.

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 26600909638 in words is "twenty-six billion, six hundred million, nine hundred nine thousand, six hundred thirty-eight".