21470014115500 has 192 divisors, whose sum is σ = 48959891076096. Its totient is φ = 8215879680000.

The previous prime is 21470014115443. The next prime is 21470014115521. The reversal of 21470014115500 is 551141007412.

It is a happy number.

It is a super-2 number, since 2×21470014115500² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 511742524 + ... + 511784476.

It is an arithmetic number, because the mean of its divisors is an integer number (254999432688).

Almost surely, 2^{21470014115500} is an apocalyptic number.

21470014115500 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 21470014115500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24479945538048).

21470014115500 is an abundant number, since it is smaller than the sum of its proper divisors (27489876960596).

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

21470014115500 is a wasteful number, since it uses less digits than its factorization.

21470014115500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42381 (or 42369 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The spelling of 21470014115500 in words is "twenty-one trillion, four hundred seventy billion, fourteen million, one hundred fifteen thousand, five hundred".