21363574254000 has 320 divisors, whose sum is σ = 75339160985088. Its totient is φ = 5165157504000.

The previous prime is 21363574253999. The next prime is 21363574254023. The reversal of 21363574254000 is 45247536312.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24184099 + ... + 25051901.

Almost surely, 2^{21363574254000} is an apocalyptic number.

21363574254000 is a gapful number since it is divisible by the number (20) 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 21363574254000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37669580492544).

21363574254000 is an abundant number, since it is smaller than the sum of its proper divisors (53975586731088).

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

21363574254000 is a wasteful number, since it uses less digits than its factorization.

21363574254000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868213 (or 868197 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 21363574254000 in words is "twenty-one trillion, three hundred sixty-three billion, five hundred seventy-four million, two hundred fifty-four thousand".