26993894355 has 48 divisors (see below), whose sum is σ = 49650881280. Its totient is φ = 14061908448.

The previous prime is 26993894353. The next prime is 26993894357. The reversal of 26993894355 is 55349839962.

It is an interprime number because it is at equal distance from previous prime (26993894353) and next prime (26993894357).

It is not a de Polignac number, because 26993894355 - 2¹ = 26993894353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26993894292 and 26993894301.

It is not an unprimeable number, because it can be changed into a prime (26993894351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206095 + ... + 310584.

It is an arithmetic number, because the mean of its divisors is an integer number (1034393360).

Almost surely, 2^26993894355 is an apocalyptic number.

26993894355 is a deficient number, since it is larger than the sum of its proper divisors (22656986925).

26993894355 is an equidigital number, since it uses as much as digits as its factorization.

26993894355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516742 (or 516730 counting only the distinct ones).

The product of its digits is 62985600, while the sum is 63.

The spelling of 26993894355 in words is "twenty-six billion, nine hundred ninety-three million, eight hundred ninety-four thousand, three hundred fifty-five".