1968915145020 has 24 divisors (see below), whose sum is σ = 5512962406224. Its totient is φ = 525044038656.

The previous prime is 1968915145013. The next prime is 1968915145033. The reversal of 1968915145020 is 205415198691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16407626149 + ... + 16407626268.

It is an arithmetic number, because the mean of its divisors is an integer number (229706766926).

Almost surely, 2^{1968915145020} is an apocalyptic number.

1968915145020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1968915145020 is an abundant number, since it is smaller than the sum of its proper divisors (3544047261204).

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

1968915145020 is a wasteful number, since it uses less digits than its factorization.

1968915145020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32815252429 (or 32815252427 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 51.

The spelling of 1968915145020 in words is "one trillion, nine hundred sixty-eight billion, nine hundred fifteen million, one hundred forty-five thousand, twenty".