213405533354 has 16 divisors (see below), whose sum is σ = 344745502920. Its totient is φ = 98491008000.

The previous prime is 213405533347. The next prime is 213405533503. The reversal of 213405533354 is 453335504312.

It can be written as a sum of positive squares in 4 ways, for example, as 186733744129 + 26671789225 = 432127^2 + 163315^2 .

It is a super-2 number, since 2×213405533354² (a number of 23 digits) contains 22 as substring.

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, 581462 + ... + 874590.

Almost surely, 2^213405533354 is an apocalyptic number.

213405533354 is a deficient number, since it is larger than the sum of its proper divisors (131339969566).

213405533354 is a wasteful number, since it uses less digits than its factorization.

213405533354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321145.

The product of its (nonzero) digits is 324000, while the sum is 38.

The spelling of 213405533354 in words is "two hundred thirteen billion, four hundred five million, five hundred thirty-three thousand, three hundred fifty-four".