84494831869287 has 96 divisors (see below), whose sum is σ = 155437463462400. Its totient is φ = 45097314796800.

The previous prime is 84494831869271. The next prime is 84494831869297. The reversal of 84494831869287 is 78296813849448.

It is a happy number.

84494831869287 is a `hidden beast` number, since 8 + 4 + 49 + 483 + 1 + 8 + 6 + 92 + 8 + 7 = 666.

It is not a de Polignac number, because 84494831869287 - 2⁴ = 84494831869271 is a prime.

It is a super-2 number, since 2×84494831869287² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84494831869297) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21886914 + ... + 25456367.

It is an arithmetic number, because the mean of its divisors is an integer number (1619140244400).

Almost surely, 2^{84494831869287} is an apocalyptic number.

84494831869287 is a deficient number, since it is larger than the sum of its proper divisors (70942631593113).

84494831869287 is a wasteful number, since it uses less digits than its factorization.

84494831869287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47343394 (or 47343381 counting only the distinct ones).

The product of its digits is 5350883328, while the sum is 81.

The spelling of 84494831869287 in words is "eighty-four trillion, four hundred ninety-four billion, eight hundred thirty-one million, eight hundred sixty-nine thousand, two hundred eighty-seven".