84263147477 has 4 divisors (see below), whose sum is σ = 84432012000. Its totient is φ = 84094282956.

The previous prime is 84263147447. The next prime is 84263147497. The reversal of 84263147477 is 77474136248.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84263147477 - 2²² = 84258953173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84263147447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84431513 + ... + 84432510.

It is an arithmetic number, because the mean of its divisors is an integer number (21108003000).

Almost surely, 2^84263147477 is an apocalyptic number.

It is an amenable number.

84263147477 is a deficient number, since it is larger than the sum of its proper divisors (168864523).

84263147477 is a wasteful number, since it uses less digits than its factorization.

84263147477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168864522.

The product of its digits is 6322176, while the sum is 53.

The spelling of 84263147477 in words is "eighty-four billion, two hundred sixty-three million, one hundred forty-seven thousand, four hundred seventy-seven".