26985998722 has 16 divisors (see below), whose sum is σ = 40575427200. Its totient is φ = 13460892160.

The previous prime is 26985998717. The next prime is 26985998723. The reversal of 26985998722 is 22789958962.

It is not an unprimeable number, because it can be changed into a prime (26985998723) 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, 1682979 + ... + 1698937.

It is an arithmetic number, because the mean of its divisors is an integer number (2535964200).

Almost surely, 2^26985998722 is an apocalyptic number.

26985998722 is a deficient number, since it is larger than the sum of its proper divisors (13589428478).

26985998722 is a wasteful number, since it uses less digits than its factorization.

26985998722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17921.

The product of its digits is 78382080, while the sum is 67.

The spelling of 26985998722 in words is "twenty-six billion, nine hundred eighty-five million, nine hundred ninety-eight thousand, seven hundred twenty-two".