84212438408 has 36 divisors (see below), whose sum is σ = 183690172485. Its totient is φ = 36088582656.

The previous prime is 84212438377. The next prime is 84212438411. The reversal of 84212438408 is 80483421248.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 47655763204 + 36556675204 = 218302^2 + 191198^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=205198.

It is a super-4 number, since 4×84212438408⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5738216 + ... + 5752872.

Almost surely, 2^84212438408 is an apocalyptic number.

It is an amenable number.

84212438408 is an abundant number, since it is smaller than the sum of its proper divisors (99477734077).

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

84212438408 is an frugal number, since it uses more digits than its factorization.

84212438408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29334 (or 14666 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 44.

The spelling of 84212438408 in words is "eighty-four billion, two hundred twelve million, four hundred thirty-eight thousand, four hundred eight".