213078930036 has 144 divisors (see below), whose sum is σ = 605144405376. Its totient is φ = 56966197248.

The previous prime is 213078930023. The next prime is 213078930047. The reversal of 213078930036 is 630039870312.

It is a happy number.

It is a super-2 number, since 2×213078930036² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 213078930036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45752220 + ... + 45756876.

It is an arithmetic number, because the mean of its divisors is an integer number (4202391704).

Almost surely, 2^213078930036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213078930036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302572202688).

213078930036 is an abundant number, since it is smaller than the sum of its proper divisors (392065475340).

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

213078930036 is a wasteful number, since it uses less digits than its factorization.

213078930036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5046 (or 4865 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 213078930036 in words is "two hundred thirteen billion, seventy-eight million, nine hundred thirty thousand, thirty-six".