26902810028640 has 384 divisors, whose sum is σ = 106428707481600. Its totient is φ = 5676196829184.

The previous prime is 26902810028621. The next prime is 26902810028641. The reversal of 26902810028640 is 4682001820962.

It is a happy number.

It is a super-2 number, since 2×26902810028640² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 26902810028640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26902810028641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4144444 + ... + 8425083.

It is an arithmetic number, because the mean of its divisors is an integer number (277158092400).

Almost surely, 2^{26902810028640} is an apocalyptic number.

26902810028640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26902810028640 is an abundant number, since it is smaller than the sum of its proper divisors (79525897452960).

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

26902810028640 is a wasteful number, since it uses less digits than its factorization.

26902810028640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12569579 (or 12569557 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 26902810028640 in words is "twenty-six trillion, nine hundred two billion, eight hundred ten million, twenty-eight thousand, six hundred forty".