26519816794020 has 288 divisors, whose sum is σ = 82211480770944. Its totient is φ = 6382518405120.

The previous prime is 26519816794001. The next prime is 26519816794123. The reversal of 26519816794020 is 2049761891562.

It is a super-2 number, since 2×26519816794020² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1108815102 + ... + 1108839018.

Almost surely, 2^{26519816794020} is an apocalyptic number.

26519816794020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26519816794020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41105740385472).

26519816794020 is an abundant number, since it is smaller than the sum of its proper divisors (55691663976924).

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

26519816794020 is a wasteful number, since it uses less digits than its factorization.

26519816794020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25051 (or 25038 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 26519816794020 in words is "twenty-six trillion, five hundred nineteen billion, eight hundred sixteen million, seven hundred ninety-four thousand, twenty".