26820898474 has 4 divisors (see below), whose sum is σ = 40231347714. Its totient is φ = 13410449236.

The previous prime is 26820898459. The next prime is 26820898477. The reversal of 26820898474 is 47489802862.

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

It can be written as a sum of positive squares in only one way, i.e., 25429086225 + 1391812249 = 159465^2 + 37307^2 .

It is not an unprimeable number, because it can be changed into a prime (26820898477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6705224617 + ... + 6705224620.

Almost surely, 2^26820898474 is an apocalyptic number.

26820898474 is a deficient number, since it is larger than the sum of its proper divisors (13410449240).

26820898474 is a wasteful number, since it uses less digits than its factorization.

26820898474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13410449239.

The product of its (nonzero) digits is 12386304, while the sum is 58.

The spelling of 26820898474 in words is "twenty-six billion, eight hundred twenty million, eight hundred ninety-eight thousand, four hundred seventy-four".