26897054481 has 48 divisors (see below), whose sum is σ = 43998776640. Its totient is φ = 16284265920.

The previous prime is 26897054467. The next prime is 26897054501. The reversal of 26897054481 is 18445079862.

It is a happy number.

26897054481 is a `hidden beast` number, since 2 + 6 + 8 + 97 + 0 + 544 + 8 + 1 = 666.

It is not a de Polignac number, because 26897054481 - 2¹¹ = 26897052433 is a prime.

It is a super-2 number, since 2×26897054481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26897053481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2852731 + ... + 2862143.

It is an arithmetic number, because the mean of its divisors is an integer number (916641180).

Almost surely, 2^26897054481 is an apocalyptic number.

It is an amenable number.

26897054481 is a deficient number, since it is larger than the sum of its proper divisors (17101722159).

26897054481 is a wasteful number, since it uses less digits than its factorization.

26897054481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10508 (or 10496 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 26897054481 in words is "twenty-six billion, eight hundred ninety-seven million, fifty-four thousand, four hundred eighty-one".