84494130771 has 4 divisors (see below), whose sum is σ = 112658841032. Its totient is φ = 56329420512.

The previous prime is 84494130767. The next prime is 84494130781. The reversal of 84494130771 is 17703149448.

It is a happy number.

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

It is not a de Polignac number, because 84494130771 - 2² = 84494130767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84494130771.

It is not an unprimeable number, because it can be changed into a prime (84494130701) 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, 14082355126 + ... + 14082355131.

It is an arithmetic number, because the mean of its divisors is an integer number (28164710258).

Almost surely, 2^84494130771 is an apocalyptic number.

84494130771 is a deficient number, since it is larger than the sum of its proper divisors (28164710261).

84494130771 is a wasteful number, since it uses less digits than its factorization.

84494130771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28164710260.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 84494130771 in words is "eighty-four billion, four hundred ninety-four million, one hundred thirty thousand, seven hundred seventy-one".