26983971790848 has 140 divisors (see below), whose sum is σ = 80613861320850. Its totient is φ = 8994657042432.

The previous prime is 26983971790823. The next prime is 26983971790921. The reversal of 26983971790848 is 84809717938962.

26983971790848 is a `hidden beast` number, since 2 + 6 + 98 + 397 + 17 + 90 + 8 + 48 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26120767279104 + 863204511744 = 5110848^2 + 929088^2 .

It is a Smith number, since the sum of its digits (81) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19669423 + ... + 20996526.

Almost surely, 2^{26983971790848} is an apocalyptic number.

It is an amenable number.

26983971790848 is an abundant number, since it is smaller than the sum of its proper divisors (53629889530002).

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

26983971790848 is an frugal number, since it uses more digits than its factorization.

26983971790848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40665987 (or 40665954 counting only the distinct ones).

The product of its (nonzero) digits is 2633637888, while the sum is 81.

The spelling of 26983971790848 in words is "twenty-six trillion, nine hundred eighty-three billion, nine hundred seventy-one million, seven hundred ninety thousand, eight hundred forty-eight".