1973563038720 has 2816 divisors, whose sum is σ = 9508036608000. Its totient is φ = 376281759744.

The previous prime is 1973563038691. The next prime is 1973563038731. The reversal of 1973563038720 is 278303653791.

1973563038720 is a `hidden beast` number, since 1 + 9 + 7 + 3 + 563 + 0 + 3 + 8 + 72 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 5497389901 + ... + 5497390259.

Almost surely, 2^{1973563038720} is an apocalyptic number.

1973563038720 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 1973563038720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4754018304000).

1973563038720 is an abundant number, since it is smaller than the sum of its proper divisors (7534473569280).

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

1973563038720 is a wasteful number, since it uses less digits than its factorization.

1973563038720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 1973563038720 in words is "one trillion, nine hundred seventy-three billion, five hundred sixty-three million, thirty-eight thousand, seven hundred twenty".