26485401600 has 1728 divisors, whose sum is σ = 125035747200. Its totient is φ = 5449973760.

The previous prime is 26485401581. The next prime is 26485401637. The reversal of 26485401600 is 610458462.

26485401600 is a `hidden beast` number, since 2 + 6 + 4 + 8 + 5 + 40 + 1 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1151539189 + ... + 1151539211.

It is an arithmetic number, because the mean of its divisors is an integer number (72358650).

Almost surely, 2^26485401600 is an apocalyptic number.

26485401600 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 26485401600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62517873600).

26485401600 is an abundant number, since it is smaller than the sum of its proper divisors (98550345600).

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

26485401600 is a wasteful number, since it uses less digits than its factorization.

26485401600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 26485401600 in words is "twenty-six billion, four hundred eighty-five million, four hundred one thousand, six hundred".