26042780328 has 32 divisors (see below), whose sum is σ = 67207176960. Its totient is φ = 8400896640.

The previous prime is 26042780311. The next prime is 26042780381. The reversal of 26042780328 is 82308724062.

It is a self number, because there is not a number n which added to its sum of digits gives 26042780328.

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, 17501125 + ... + 17502612.

It is an arithmetic number, because the mean of its divisors is an integer number (2100224280).

Almost surely, 2^26042780328 is an apocalyptic number.

It is an amenable number.

26042780328 is an abundant number, since it is smaller than the sum of its proper divisors (41164396632).

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

26042780328 is a wasteful number, since it uses less digits than its factorization.

26042780328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35003777 (or 35003773 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 26042780328 in words is "twenty-six billion, forty-two million, seven hundred eighty thousand, three hundred twenty-eight".