26849726820 has 144 divisors (see below), whose sum is σ = 96081742848. Its totient is φ = 5939101440.

The previous prime is 26849726803. The next prime is 26849726837. The reversal of 26849726820 is 2862794862.

It is an interprime number because it is at equal distance from previous prime (26849726803) and next prime (26849726837).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 304639 + ... + 382758.

Almost surely, 2^26849726820 is an apocalyptic number.

26849726820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26849726820 is an abundant number, since it is smaller than the sum of its proper divisors (69232016028).

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

26849726820 is a wasteful number, since it uses less digits than its factorization.

26849726820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687450 (or 687445 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 26849726820 in words is "twenty-six billion, eight hundred forty-nine million, seven hundred twenty-six thousand, eight hundred twenty".