84678540508 has 12 divisors (see below), whose sum is σ = 148212157072. Its totient is φ = 42332209920.

The previous prime is 84678540449. The next prime is 84678540509. The reversal of 84678540508 is 80504587648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84678540509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1738053 + ... + 1786108.

Almost surely, 2^84678540508 is an apocalyptic number.

It is an amenable number.

84678540508 is a deficient number, since it is larger than the sum of its proper divisors (63533616564).

84678540508 is a wasteful number, since it uses less digits than its factorization.

84678540508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530172 (or 3530170 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 55.

The spelling of 84678540508 in words is "eighty-four billion, six hundred seventy-eight million, five hundred forty thousand, five hundred eight".