84512632551 has 4 divisors (see below), whose sum is σ = 112683510072. Its totient is φ = 56341755032.

The previous prime is 84512632531. The next prime is 84512632579. The reversal of 84512632551 is 15523621548.

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 84512632551 - 2⁶ = 84512632487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84512632531) 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, 14085438756 + ... + 14085438761.

It is an arithmetic number, because the mean of its divisors is an integer number (28170877518).

Almost surely, 2^84512632551 is an apocalyptic number.

84512632551 is a deficient number, since it is larger than the sum of its proper divisors (28170877521).

84512632551 is a wasteful number, since it uses less digits than its factorization.

84512632551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28170877520.

The product of its digits is 288000, while the sum is 42.

The spelling of 84512632551 in words is "eighty-four billion, five hundred twelve million, six hundred thirty-two thousand, five hundred fifty-one".