1963204240128 has 36 divisors (see below), whose sum is σ = 5224986286968. Its totient is φ = 654401413120.

The previous prime is 1963204240099. The next prime is 1963204240157. The reversal of 1963204240128 is 8210424023691.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1963204240099) and next prime (1963204240157).

It is a self number, because there is not a number n which added to its sum of digits gives 1963204240128.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278126993 + ... + 1278128528.

Almost surely, 2^{1963204240128} is an apocalyptic number.

It is an amenable number.

1963204240128 is an abundant number, since it is smaller than the sum of its proper divisors (3261782046840).

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

1963204240128 is an equidigital number, since it uses as much as digits as its factorization.

1963204240128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556255540 (or 2556255526 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 1963204240128 in words is "one trillion, nine hundred sixty-three billion, two hundred four million, two hundred forty thousand, one hundred twenty-eight".