26385939216 has 280 divisors, whose sum is σ = 94341114560. Its totient is φ = 6958649088.

The previous prime is 26385939197. The next prime is 26385939247. The reversal of 26385939216 is 61293958362.

26385939216 is a `hidden beast` number, since 2 + 6 + 38 + 593 + 9 + 2 + 16 = 666.

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 55 ways as a sum of consecutive naturals, for example, 1048995 + ... + 1073853.

It is an arithmetic number, because the mean of its divisors is an integer number (336932552).

Almost surely, 2^26385939216 is an apocalyptic number.

26385939216 is a gapful number since it is divisible by the number (26) 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 26385939216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47170557280).

26385939216 is an abundant number, since it is smaller than the sum of its proper divisors (67955175344).

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

26385939216 is a wasteful number, since it uses less digits than its factorization.

26385939216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24905 (or 24884 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The spelling of 26385939216 in words is "twenty-six billion, three hundred eighty-five million, nine hundred thirty-nine thousand, two hundred sixteen".