1964913861120 has 1600 divisors, whose sum is σ = 7902515706624. Its totient is φ = 415409111040.

The previous prime is 1964913861089. The next prime is 1964913861179. The reversal of 1964913861120 is 211683194691.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 17388618184 + ... + 17388618296.

Almost surely, 2^{1964913861120} is an apocalyptic number.

1964913861120 is a gapful number since it is divisible by the number (10) 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 1964913861120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3951257853312).

1964913861120 is an abundant number, since it is smaller than the sum of its proper divisors (5937601845504).

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

1964913861120 is an equidigital number, since it uses as much as digits as its factorization.

1964913861120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The spelling of 1964913861120 in words is "one trillion, nine hundred sixty-four billion, nine hundred thirteen million, eight hundred sixty-one thousand, one hundred twenty".