1963890255360 has 640 divisors, whose sum is σ = 7203910348800. Its totient is φ = 452011622400.

The previous prime is 1963890255337. The next prime is 1963890255367. The reversal of 1963890255360 is 635520983691.

It is a tau number, because it is divible by the number of its divisors (640).

It is a self number, because there is not a number n which added to its sum of digits gives 1963890255360.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963890255367) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 138793566 + ... + 138807714.

It is an arithmetic number, because the mean of its divisors is an integer number (11256109920).

Almost surely, 2^{1963890255360} is an apocalyptic number.

1963890255360 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 1963890255360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3601955174400).

1963890255360 is an abundant number, since it is smaller than the sum of its proper divisors (5240020093440).

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

1963890255360 is a wasteful number, since it uses less digits than its factorization.

1963890255360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14270 (or 14254 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 57.

The spelling of 1963890255360 in words is "one trillion, nine hundred sixty-three billion, eight hundred ninety million, two hundred fifty-five thousand, three hundred sixty".