26783397900 has 288 divisors, whose sum is σ = 98573690880. Its totient is φ = 6111383040.

The previous prime is 26783397827. The next prime is 26783397911. The reversal of 26783397900 is 979338762.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18010957 + ... + 18012443.

It is an arithmetic number, because the mean of its divisors is an integer number (342269760).

Almost surely, 2^26783397900 is an apocalyptic number.

26783397900 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 26783397900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49286845440).

26783397900 is an abundant number, since it is smaller than the sum of its proper divisors (71790292980).

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

26783397900 is a wasteful number, since it uses less digits than its factorization.

26783397900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470 (or 2457 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 26783397900 in words is "twenty-six billion, seven hundred eighty-three million, three hundred ninety-seven thousand, nine hundred".