26989355520000 has 1300 divisors, whose sum is σ = 105147996745440. Its totient is φ = 6883024896000.

The previous prime is 26989355519993. The next prime is 26989355520037. The reversal of 26989355520000 is 2555398962.

26989355520000 is a `hidden beast` number, since 2 + 6 + 9 + 89 + 3 + 5 + 552 + 0 + 0 + 0 + 0 = 666.

It is a super-2 number, since 2×26989355520000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 99 ways as a sum of consecutive naturals, for example, 4769277171 + ... + 4769282829.

Almost surely, 2^{26989355520000} is an apocalyptic number.

26989355520000 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 26989355520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52573998372720).

26989355520000 is an abundant number, since it is smaller than the sum of its proper divisors (78158641225440).

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

26989355520000 is an frugal number, since it uses more digits than its factorization.

26989355520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5738 (or 5692 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The spelling of 26989355520000 in words is "twenty-six trillion, nine hundred eighty-nine billion, three hundred fifty-five million, five hundred twenty thousand".