19464804540000 has 360 divisors, whose sum is σ = 69405416432352. Its totient is φ = 5172885120000.

The previous prime is 19464804539993. The next prime is 19464804540019. The reversal of 19464804540000 is 4540846491.

19464804540000 is a `hidden beast` number, since 1 + 94 + 6 + 480 + 45 + 40 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a super-2 number, since 2×19464804540000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 52555465 + ... + 52924535.

Almost surely, 2^{19464804540000} is an apocalyptic number.

19464804540000 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 19464804540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34702708216176).

19464804540000 is an abundant number, since it is smaller than the sum of its proper divisors (49940611892352).

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

19464804540000 is a wasteful number, since it uses less digits than its factorization.

19464804540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369400 (or 369374 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 19464804540000 in words is "nineteen trillion, four hundred sixty-four billion, eight hundred four million, five hundred forty thousand".