213802193439564 has 48 divisors (see below), whose sum is σ = 528219226267488. Its totient is φ = 67074938579968.

The previous prime is 213802193439539. The next prime is 213802193439577. The reversal of 213802193439564 is 465934391208312.

It is a happy number.

It is a super-2 number, since 2×213802193439564² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213802193439498 and 213802193439507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54750502 + ... + 58525394.

It is an arithmetic number, because the mean of its divisors is an integer number (11004567213906).

Almost surely, 2^{213802193439564} is an apocalyptic number.

It is an amenable number.

213802193439564 is an abundant number, since it is smaller than the sum of its proper divisors (314417032827924).

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

213802193439564 is a wasteful number, since it uses less digits than its factorization.

213802193439564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4052554 (or 4052552 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 60.

The spelling of 213802193439564 in words is "two hundred thirteen trillion, eight hundred two billion, one hundred ninety-three million, four hundred thirty-nine thousand, five hundred sixty-four".