84678540507 has 16 divisors (see below), whose sum is σ = 136854207360. Its totient is φ = 51320327400.

The previous prime is 84678540449. The next prime is 84678540509. The reversal of 84678540507 is 70504587648.

84678540507 is a `hidden beast` number, since 8 + 46 + 7 + 8 + 540 + 50 + 7 = 666.

It is not a de Polignac number, because 84678540507 - 2¹⁰ = 84678539483 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 142556169 + ... + 142556762.

It is an arithmetic number, because the mean of its divisors is an integer number (8553387960).

Almost surely, 2^84678540507 is an apocalyptic number.

84678540507 is a deficient number, since it is larger than the sum of its proper divisors (52175666853).

84678540507 is a wasteful number, since it uses less digits than its factorization.

84678540507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285112951 (or 285112945 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 84678540507 in words is "eighty-four billion, six hundred seventy-eight million, five hundred forty thousand, five hundred seven".