26794684578 has 16 divisors (see below), whose sum is σ = 55919342016. Its totient is φ = 8543232720.

The previous prime is 26794684523. The next prime is 26794684603. The reversal of 26794684578 is 87548649762.

It is a happy number.

It is a super-2 number, since 2×26794684578² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97082053 + ... + 97082328.

It is an arithmetic number, because the mean of its divisors is an integer number (3494958876).

Almost surely, 2^26794684578 is an apocalyptic number.

26794684578 is an abundant number, since it is smaller than the sum of its proper divisors (29124657438).

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

26794684578 is a wasteful number, since it uses less digits than its factorization.

26794684578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194164409.

The product of its digits is 162570240, while the sum is 66.

The spelling of 26794684578 in words is "twenty-six billion, seven hundred ninety-four million, six hundred eighty-four thousand, five hundred seventy-eight".