26923393980 has 576 divisors, whose sum is σ = 102148300800. Its totient is φ = 5943974400.

The previous prime is 26923393979. The next prime is 26923393993. The reversal of 26923393980 is 8939332962.

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 polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 51676120 + ... + 51676640.

It is an arithmetic number, because the mean of its divisors is an integer number (177340800).

Almost surely, 2^26923393980 is an apocalyptic number.

26923393980 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 26923393980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51074150400).

26923393980 is an abundant number, since it is smaller than the sum of its proper divisors (75224906820).

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

26923393980 is a wasteful number, since it uses less digits than its factorization.

26923393980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 54.

It can be divided in two parts, 26923 and 393980, that added together give a triangular number (420903 = T₉₁₇).

The spelling of 26923393980 in words is "twenty-six billion, nine hundred twenty-three million, three hundred ninety-three thousand, nine hundred eighty".