213955395419670 has 16 divisors (see below), whose sum is σ = 513492949007280. Its totient is φ = 57054772111904.

The previous prime is 213955395419659. The next prime is 213955395419683. The reversal of 213955395419670 is 76914593559312.

It is a super-2 number, since 2×213955395419670² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213955395419595 and 213955395419604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3565923256965 + ... + 3565923257024.

It is an arithmetic number, because the mean of its divisors is an integer number (32093309312955).

Almost surely, 2^{213955395419670} is an apocalyptic number.

213955395419670 is an abundant number, since it is smaller than the sum of its proper divisors (299537553587610).

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

213955395419670 is a wasteful number, since it uses less digits than its factorization.

213955395419670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7131846513999.

The product of its (nonzero) digits is 275562000, while the sum is 69.

The spelling of 213955395419670 in words is "two hundred thirteen trillion, nine hundred fifty-five billion, three hundred ninety-five million, four hundred nineteen thousand, six hundred seventy".