213809045910 has 32 divisors (see below), whose sum is σ = 513301253472. Its totient is φ = 56998018560.

The previous prime is 213809045897. The next prime is 213809045921. The reversal of 213809045910 is 19540908312.

It is a super-2 number, since 2×213809045910² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 1009699 + ... + 1202958.

It is an arithmetic number, because the mean of its divisors is an integer number (16040664171).

Almost surely, 2^213809045910 is an apocalyptic number.

213809045910 is an abundant number, since it is smaller than the sum of its proper divisors (299492207562).

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

213809045910 is a wasteful number, since it uses less digits than its factorization.

213809045910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215888.

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 213809045910 in words is "two hundred thirteen billion, eight hundred nine million, forty-five thousand, nine hundred ten".