84672017419 has 24 divisors (see below), whose sum is σ = 98865630864. Its totient is φ = 72210124800.

The previous prime is 84672017407. The next prime is 84672017459. The reversal of 84672017419 is 91471027648.

It is not a de Polignac number, because 84672017419 - 2³¹ = 82524533771 is a prime.

It is a super-2 number, since 2×84672017419² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84672017459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564459 + ... + 698539.

It is an arithmetic number, because the mean of its divisors is an integer number (4119401286).

Almost surely, 2^84672017419 is an apocalyptic number.

84672017419 is a deficient number, since it is larger than the sum of its proper divisors (14193613445).

84672017419 is a wasteful number, since it uses less digits than its factorization.

84672017419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134427 (or 134416 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 84672017419 in words is "eighty-four billion, six hundred seventy-two million, seventeen thousand, four hundred nineteen".