84436860321 has 32 divisors (see below), whose sum is σ = 139367116800. Its totient is φ = 50085041040.

The previous prime is 84436860269. The next prime is 84436860323. The reversal of 84436860321 is 12306863448.

84436860321 is a `hidden beast` number, since 8 + 4 + 4 + 36 + 8 + 603 + 2 + 1 = 666.

It is not a de Polignac number, because 84436860321 - 2⁶ = 84436860257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84436860323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3010501 + ... + 3038418.

It is an arithmetic number, because the mean of its divisors is an integer number (4355222400).

Almost surely, 2^84436860321 is an apocalyptic number.

It is an amenable number.

84436860321 is a deficient number, since it is larger than the sum of its proper divisors (54930256479).

84436860321 is a wasteful number, since it uses less digits than its factorization.

84436860321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6048986 (or 6048980 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 84436860321 in words is "eighty-four billion, four hundred thirty-six million, eight hundred sixty thousand, three hundred twenty-one".