213496826400 has 864 divisors, whose sum is σ = 913126556160. Its totient is φ = 46227456000.

The previous prime is 213496826393. The next prime is 213496826489. The reversal of 213496826400 is 4628694312.

213496826400 is a `hidden beast` number, since 2 + 134 + 96 + 8 + 26 + 400 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 31914256 + ... + 31920944.

It is an arithmetic number, because the mean of its divisors is an integer number (1056859440).

Almost surely, 2^213496826400 is an apocalyptic number.

213496826400 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 213496826400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456563278080).

213496826400 is an abundant number, since it is smaller than the sum of its proper divisors (699629729760).

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

213496826400 is a wasteful number, since it uses less digits than its factorization.

213496826400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770 (or 6754 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 213496826400 in words is "two hundred thirteen billion, four hundred ninety-six million, eight hundred twenty-six thousand, four hundred".