84659654427 has 4 divisors (see below), whose sum is σ = 112879539240. Its totient is φ = 56439769616.

The previous prime is 84659654411. The next prime is 84659654477. The reversal of 84659654427 is 72445695648.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84659654427 - 2⁴ = 84659654411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84659654477) 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, 14109942402 + ... + 14109942407.

It is an arithmetic number, because the mean of its divisors is an integer number (28219884810).

Almost surely, 2^84659654427 is an apocalyptic number.

84659654427 is a deficient number, since it is larger than the sum of its proper divisors (28219884813).

84659654427 is a wasteful number, since it uses less digits than its factorization.

84659654427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28219884812.

The product of its digits is 58060800, while the sum is 60.

The spelling of 84659654427 in words is "eighty-four billion, six hundred fifty-nine million, six hundred fifty-four thousand, four hundred twenty-seven".