84453786784 has 12 divisors (see below), whose sum is σ = 166268392794. Its totient is φ = 42226893376.

The previous prime is 84453786773. The next prime is 84453786811. The reversal of 84453786784 is 48768735448.

It can be written as a sum of positive squares in only one way, i.e., 78590515600 + 5863271184 = 280340^2 + 76572^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319590387 + ... + 1319590450.

Almost surely, 2^84453786784 is an apocalyptic number.

It is an amenable number.

84453786784 is a deficient number, since it is larger than the sum of its proper divisors (81814606010).

84453786784 is a wasteful number, since it uses less digits than its factorization.

84453786784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639180847 (or 2639180839 counting only the distinct ones).

The product of its digits is 144506880, while the sum is 64.

The spelling of 84453786784 in words is "eighty-four billion, four hundred fifty-three million, seven hundred eighty-six thousand, seven hundred eighty-four".