26388889002740 has 48 divisors (see below), whose sum is σ = 61053105625344. Its totient is φ = 9500950128000.

The previous prime is 26388889002673. The next prime is 26388889002743. The reversal of 26388889002740 is 4720098888362.

It is a super-2 number, since 2×26388889002740² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26388889002743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593787164 + ... + 593831603.

It is an arithmetic number, because the mean of its divisors is an integer number (1271939700528).

Almost surely, 2^{26388889002740} is an apocalyptic number.

26388889002740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26388889002740 is an abundant number, since it is smaller than the sum of its proper divisors (34664216622604).

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

26388889002740 is a wasteful number, since it uses less digits than its factorization.

26388889002740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187618888 (or 1187618886 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 65.

The spelling of 26388889002740 in words is "twenty-six trillion, three hundred eighty-eight billion, eight hundred eighty-nine million, two thousand, seven hundred forty".