84661044508 has 6 divisors (see below), whose sum is σ = 148156827896. Its totient is φ = 42330522252.

The previous prime is 84661044451. The next prime is 84661044509. The reversal of 84661044508 is 80544016648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84661044509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10582630560 + ... + 10582630567.

Almost surely, 2^84661044508 is an apocalyptic number.

It is an amenable number.

84661044508 is a deficient number, since it is larger than the sum of its proper divisors (63495783388).

84661044508 is a wasteful number, since it uses less digits than its factorization.

84661044508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21165261131 (or 21165261129 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 84661044508 in words is "eighty-four billion, six hundred sixty-one million, forty-four thousand, five hundred eight".