213654424500 has 144 divisors (see below), whose sum is σ = 735282160704. Its totient is φ = 51795000000.

The previous prime is 213654424439. The next prime is 213654424517. The reversal of 213654424500 is 5424456312.

213654424500 is a `hidden beast` number, since 2 + 136 + 54 + 424 + 50 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2108626 + ... + 2207625.

It is an arithmetic number, because the mean of its divisors is an integer number (5106126116).

Almost surely, 2^213654424500 is an apocalyptic number.

213654424500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213654424500 is an abundant number, since it is smaller than the sum of its proper divisors (521627736204).

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

213654424500 is a wasteful number, since it uses less digits than its factorization.

213654424500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316287 (or 4316272 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 213654424500 in words is "two hundred thirteen billion, six hundred fifty-four million, four hundred twenty-four thousand, five hundred".