196619851512 has 192 divisors, whose sum is σ = 622047928320. Its totient is φ = 54936382464.

The previous prime is 196619851499. The next prime is 196619851529. The reversal of 196619851512 is 215158916691.

It is a happy number.

196619851512 is a `hidden beast` number, since 1 + 9 + 6 + 619 + 8 + 5 + 1 + 5 + 12 = 666.

It is a super-2 number, since 2×196619851512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37116448 + ... + 37121744.

It is an arithmetic number, because the mean of its divisors is an integer number (3239832960).

Almost surely, 2^196619851512 is an apocalyptic number.

196619851512 is a gapful number since it is divisible by the number (12) 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 196619851512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311023964160).

196619851512 is an abundant number, since it is smaller than the sum of its proper divisors (425428076808).

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

196619851512 is a wasteful number, since it uses less digits than its factorization.

196619851512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6930 (or 6923 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 54.

The spelling of 196619851512 in words is "one hundred ninety-six billion, six hundred nineteen million, eight hundred fifty-one thousand, five hundred twelve".