196526409408 has 1232 divisors, whose sum is σ = 777515051520. Its totient is φ = 47889211392.

The previous prime is 196526409361. The next prime is 196526409463. The reversal of 196526409408 is 804904625691.

196526409408 is a `hidden beast` number, since 196 + 5 + 2 + 6 + 40 + 9 + 408 = 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 175 ways as a sum of consecutive naturals, for example, 8544626485 + ... + 8544626507.

Almost surely, 2^196526409408 is an apocalyptic number.

196526409408 is a gapful number since it is divisible by the number (18) 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 196526409408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388757525760).

196526409408 is an abundant number, since it is smaller than the sum of its proper divisors (580988642112).

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

196526409408 is an equidigital number, since it uses as much as digits as its factorization.

196526409408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 196526409408 in words is "one hundred ninety-six billion, five hundred twenty-six million, four hundred nine thousand, four hundred eight".